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General Knowledge
:
EveryDay Science
:
Self Assessment Test
Physics
QNo.
1
If the temperature of a place increases suddenly, the relative humidity:
A
Increases
B
Remains constant
C
Fluctuates
D
Decreases
QNo.
2
Who enunciated the laws of planetary motion?
A
Isaac Newton
B
Galileo
C
Johannes Kepler
D
Nicolaus Copernicus
QNo.
3
Light beam which is highly directional is called:
A
Laser
B
Maser
C
Eraser
D
Grazer
QNo.
4
Blowing air with open pipe is an example of:
A
Isobaric Process
B
Isothermal Process
C
Adiabatic Process
D
Isochronic Process
QNo.
5
Distance of stars are measured in:
A
Cosmic Kilometre
B
Galactic Unit
C
Light Year
D
Stellar Mile
QNo.
6
The layer of atmosphere used for radio wave transmission is:
A
Ionosphere
B
Troposphere
C
Chromosphere
D
Stratosphere
QNo.
7
Which of the following is the smallest unit of length?
A
Micron
B
Nanometer
C
Fermimeter
D
Angstram
QNo.
8
When two persons talk to each other, then sound for how much decibel is produced?
A
5 decibel
B
10 decibel
C
30 decibel
D
100 decibel
QNo.
9
The centre of gravity of a sprinter during the race lies:
A
Ahead of his feet
B
At the center of the body
C
To the left side of the body
D
Behind his feet
QNo.
10
The slope of a velocity-time graph represents:
A
Distance
B
Speed
C
Acceleration
D
Displacement
QNo.
11
The Speed of Light in a Vacuum is:
A
5000,282 Miles per Second
B
100,000 Miles per Second
C
186,282 Miles per Second
D
None of the Above
QNo.
12
A free-falling object has an acceleration of ___.
A
343 m/s
B
9.80 km/s2
C
9.80 m/s2
D
9.80 cm/s2
QNo.
13
The regions of the spring in which spring is stretched more than its normal position are known as?
A
Rarefactions
B
Compressions
C
Troughs
D
Crests
QNo.
14
A mass attached with a spring vibrates up and down produces?
A
Longitudinal Periodic Waves
B
Transverse Periodic Waves
C
Both a & b
D
None of these
QNo.
15
Which type of wave can be set in Solids?
A
Longitudinal Waves
B
Transverse Waves
C
Both a & b
D
None of these
QNo.
16
Which one of the following is an example of resonance?
A
Swing
B
Turning a radio
C
Microwave Oven
D
All of these
QNo.
17
To access the total uncertainty or error, it is necessary to evaluate the likely uncertainties in?
A
Any Factor Involved in that Calculation
B
Dominant Factor Involved in that Calculation
C
All Factors Involved in that Calculation
D
Any of them
QNo.
18
Calorie is a unit of which of the following?
A
Food Intake
B
Diet
C
Quantity of Heat
D
All of these
QNo.
19
A body has weight of 30N with the value of gravitational acceleration 10m/s^2. What is the mass of the body?
A
300 kg
B
3 kg
C
30 kg
D
0.3 kg
QNo.
20
The SI unit of magnetic induction is:
A
Webber
B
Webber per meter
C
Henry
D
Tesla
QNo.
21
Which of the following substance will be most suitable for the Transformer core?
A
Soft iron
B
Nickel
C
Steal
D
Copper
QNo.
22
Concept of electric field theory was introduced by which of the following Scientists?
A
Dalton
B
Michael Faraday
C
Kepler
D
Nelson Mandela
QNo.
23
Which of the following law governs the force between electric charges?
A
Ampere’s law
B
Coulomb’s law
C
Newton’s law
D
Ohm’s law
QNo.
24
When the distance between two charged particles is halved, the force between them becomes:
A
One – Half
B
Four Times
C
Double
D
Remain Same
QNo.
25
An electric field can deflect:
A
X-rays
B
Neutrons
C
Alpha-particles
D
Gama-rays
QNo.
26
If an electron has an initial velocity in a direction different from that of an electric field, the path of the electron is:
A
A parabola
B
An ellipse
C
A Circle
D
A straight line
QNo.
27
The rate of flow of Electric charge through the surface is known as:
A
Charge
B
Electric Current
C
Power
D
Voltage
QNo.
28
The current per unit area is called:
A
Current density
B
Electric charge
C
Potential difference
D
Resistance
QNo.
29
The temperature at which the value of resistivity falls to zero is called:
A
Lowest temperature
B
Zero temperature
C
Critical temperature
D
Absolute zero temperature
QNo.
30
As the charge flows through the conductor energy is dissipated in the form of:
A
Light
B
Heat
C
Solar energy
D
None of these
QNo.
31
The lower and upper fixed points on Celsius (centigrade) scale are taken to be:
A
0° and 212°
B
0° and 100°
C
32° and 273°
D
None of these
QNo.
32
A Centigrade degree is greater than Fahrenheit by:
A
9/5
B
5/9
C
17/5
D
18/8
QNo.
33
The temperature scales Centigrade and Fahrenheit have the same reading at:
A
140°
B
-43°
C
-40°
D
50°
QNo.
34
The normal temperature of the human body is 37 C°. On Kelvin scale, it is equal to:
A
373 K
B
273 K
C
310 K
D
236 K
QNo.
35
One degree of temperature scale centigrade (Celsius) is equal to Fahrenheit?
A
1° of Fahrenheit
B
1.8° of Fahrenheit
C
32° of Fahrenheit
D
3.5° of Fahrenheit
QNo.
36
Which of the following temperature on the Fahrenheit scale corresponds to absolute zero?
A
212° F
B
60°F
C
-450° F
D
-460° F
QNo.
37
Absolute zero is considered to be the temperature at which:
A
All gases become liquids
B
Water freezes
C
Molecular motion in gases would cease
D
All liquids become gases
QNo.
38
The temperature scales Kelvin and Fahrenheit show the same reading at what temperature?
A
-57.37°
B
5.74.20°
C
574.25 °
D
-574.25°
QNo.
39
The average K.E of all the molecules in a substance is a measure of the following?
A
Boiling Point
B
Heat Energy
C
Temperature
D
Specific Heat
QNo.
40
The SI unit of Capacitance is:
A
Newton
B
Farad
C
Joule
D
Capability
QNo.
41
The SI unit of amount of substance is?
A
Mole
B
Ampere
C
Watt
D
Kilogram
QNo.
42
From the following remains constant while throwing a ball upward?
A
Displacement
B
Acceleration
C
Velocity
D
Kinetic Energy
QNo.
43
Pure Water freezes at the temperature of:
A
32 F
B
0 F
C
47 F
D
18 F
QNo.
44
Zinc Oxide is _____.
A
Acidic
B
Basic
C
Amphoteric
D
Neutral
QNo.
45
If a car is moving and turn its speed for 3.3times what will be the impact on its kinetic energy?
A
9.89 Times
B
10.89 Times
C
8.80 Times
D
10.50 Times
QNo.
46
The degree of hotness or coldness of an object is expressed in terms of:
A
Heat Capacity
B
Heat
C
Heat Energy
D
Temperature
QNo.
47
Which thermometric property is used in Liquid in glass thermometers?
A
Color Change on Heating
B
Resistance Change on Heating
C
Thermal Expansion
D
None of these
QNo.
48
Light Year is the Unit of ___.
A
Galaxy
B
Distance
C
Time
D
None of the above
QNo.
49
S.I Unit of Current is:
A
Volt
B
Fathom
C
Ampere
D
None of these
QNo.
50
Who determines Gravitational Constant and Mass of Earth?
A
Benjamin Thomson
B
William Herschel
C
Thomas Young
D
Henry Cavendish
QNo.
51
Who was develop ‘Wave theory of light’?
A
Issac Newton
B
Ole Romer
C
Huygens Dutch
D
Simon Stevinus
QNo.
52
Work done is defined as the dot product of:
A
Force and acceleration
B
Force and area
C
Force and instantaneous velocity
D
Force and displacement
QNo.
53
The thrust on the rocket is:
A
in the same direction as the rocket
B
in the opposite direction of the rocket
C
at 90° to the direction of the rocket
D
None of the above
QNo.
54
What is the dot product of two perpendicular vectors?
A
1
B
0
C
-1
D
1/2
QNo.
55
Which Statment is correct about Kinetic energy during the projectile motion?
A
it is minimum at the point of projection
B
it is minimum at the highest point
C
it is maximum at the highest point
D
it is minimum at the point of reaching the ground
QNo.
56
The magnitude of the resultant of two vectors is maximum in which of the following case?
A
when vectors act in the same direction
B
when vectors act in the opposite direction
C
when vectors act at 90° to each other
D
None of the abov
QNo.
57
Joule/kg is the S.I unit of which of these physical quantities?
A
Entropy
B
Permittivity of free space
C
Latent heat
D
Gas constant
QNo.
58
1 femto metre is equal to how many metres?
A
10-12
B
10-14
C
10-15
D
1-24
QNo.
59
Which temperature scale is based upon absolute zero?
A
Celsius
B
Fahrenheit
C
Kelvin
D
Rankine
QNo.
60
What is the time taken by the earth to complete one rotation about its axis with regard to a fixed star?
A
Sidereal day
B
Solar day
C
Shake
D
Tropical year
QNo.
61
By how many times are the Electrostatic forces stronger than the Gravitational Forces for a fixed distance?
A
10²
B
10³⁶
C
10¹²
D
2
QNo.
62
Which of the following is the unit of Impulse?
A
N
B
Ns
C
N/s
D
Ns2
QNo.
63
Electron microscope works on which of the following principles?
A
Optical interference
B
Wave Nature of electrons
C
Motion of a charged particle in electromagnetic fields
D
Faraday’s law of Electromagnetic induction
QNo.
64
Due to which of the following phenomena, the colored glass appears white when crushed into fine powder?
A
Total Internal Reflection
B
Diffraction
C
Scattering
D
Refraction
QNo.
65
Which of the following Radio frequencies are used around the world in air navigational system?
A
Very Low Frequency (VLF)
B
Very High Frequency (VHF)
C
Tetrahertz Radiation (THF)
D
Ultra High Frequency (UHF)
QNo.
66
A simple microscope consists of which lenses?
A
a long-focus concave lens
B
a short-focus concave lens
C
a short-focus convex lens
D
a long-focus convex lens
QNo.
67
When white light is passed through a prism, it splits into ____ colors.
A
3
B
4
C
5
D
6
QNo.
68
Thermocouples coverts _________.
A
Chemical into electrical energy
B
Mechanical into electrical energy
C
Heat into electrical energy
D
Heat into Mechanical enrgy
QNo.
69
The sum of magnitudes of two forces is 16 N. The resultant force is 8 N and its direction is perpendicular to minimum force, then the forces are _____.
A
4 N and 8 N
B
6 N and 10 N
C
8 N and 8 N
D
8 N and 12 N
QNo.
70
Which one is quantitative chemical analysis?
A
Borax bead test
B
Salt Analysis
C
Flame test
D
Titration
QNo.
71
One atomic mass unit is equivalent to _______.
A
931 Joule
B
931 MeV
C
941 MeV
D
931 eV
QNo.
72
The common name of Proton and Neutron is called ______.
A
Atomic Particle
B
Nuclear Particle
C
Nucleon
D
Photon
QNo.
73
The cause of blowing a fuse is ______.
A
substandard material
B
wet wire
C
very thin wire
D
too much heating
QNo.
74
Energy is provided for the flow of charges in a circuit by a ______.
A
bulb
B
switch
C
cell
D
wire
QNo.
75
An IC is a collection of electronic components and these components are _______.
A
resistors
B
transistors, capacitors,
C
resistors, transistors
D
resistors, transistors, capacitors
QNo.
76
An IC is a collection of _______ components.
A
Electrical
B
Electronic
C
Both A and B
D
Thermal & electronic
QNo.
77
Thermal expansion is not involve in ________.
A
Thermostat
B
Automatic fire alarm
C
Wooden stick
D
All of these
QNo.
78
When an object is heated, the movement of its particles _______.
A
Increases
B
Decreases
C
Not Change
D
None of these
QNo.
79
The device used to measure potential difference in a circuit is ______.
A
ammeter
B
voltmeter
C
barometer
D
Potentailmeter
QNo.
80
Compressed Air has ability to do __________.
A
Chemical Reaction
B
Random Motion
C
Work
D
All of these
QNo.
81
Jack system is an application of __________.
A
Aerosols
B
Hydraulic
C
Pneumatics
D
Both A and B
QNo.
82
Fluids enclosed in a vessel exert __________.
A
Force
B
Weight
C
Energy
D
Pressure
QNo.
83
Hydrostatic pressure always act __________.
A
Vertical
B
Horizental
C
Perpendicular
D
Parallel
QNo.
84
The Unit of pressure is _________.
A
Kg
B
m²
C
Nm
D
Nm⁻²
QNo.
85
A gas in a container develops pressure due to __________.
A
collision of molecules of each other
B
collision of molecules with walls of the container
C
Both A and B
D
None of these
QNo.
86
Hydrstatic pressure of the liquids depends upon _________.
A
depth of the liquid
B
size of the vessel
C
volume of the vessel
D
shape of the liquid
QNo.
87
When same amount of force is applied on different areas, it exerts __________.
A
low pressure on a small area
B
high pressure on a small area
C
no pressure on a small area
D
small pressure on a large area
QNo.
88
The SI unit of Pressure is ____________.
A
Watt
B
Joule
C
Newton
D
Pascal
QNo.
89
Magenta is a ____________.
A
Primary color
B
Secondary color
C
Tertiary color
D
None of these
QNo.
90
In binocular, the angle for glass is ___________.
A
40°
B
42°
C
45°
D
47°
QNo.
91
Periscope are used in __________.
A
Submarines
B
Tanks
C
Both A and B
D
None of these
QNo.
92
A block of glass with three rectangular and two triangular surface is called _____.
A
Periscope
B
Binocular
C
Prisms
D
Mirage
QNo.
93
In n= c/v, c represents __________.
A
Cold
B
Curve
C
Circumference
D
Speed of light in air
QNo.
94
Refractive index of diamond is _________.
A
2.42
B
2.52
C
2.62
D
2.72
QNo.
95
An imaginary line perpendicular to any surface is called _______.
A
Bisector
B
Perpendicular
C
Normal
D
Line
QNo.
96
In primary rainbow color is one the outer edge _________.
A
green
B
violet
C
red
D
blue
QNo.
97
Two prisms placed end to end, act like _________.
A
Mirror
B
lens
C
figure
D
disc
QNo.
98
Long sightedness is also called __________
A
Myopia
B
Hypermetropia
C
Windness
D
Sadness
QNo.
99
A person suffering from Sightedness cannot see near object clearly has ______.
A
color wind
B
seldom
C
short-sightedness
D
long sightedness
QNo.
100
Primary rainbow has __________.
A
invisible colors
B
lightest colors
C
brightness colors
D
None of these
QNo.
101
Totally reflecting prisms are used in __________.
A
binocular
B
lights
C
lenses
D
water
QNo.
102
The pitch of the sound depends upon _______.
A
Frequency
B
Time period
C
Both A and B
D
None of these
QNo.
103
The part of Inner ear which is important in hearing process is called _____.
A
Pinna
B
Cochlea
C
Drem
D
None of these
QNo.
104
When the sound waves reach the ear drum, it starts _____.
A
Vibrating
B
Oscillating
C
Running
D
Moving
QNo.
105
Series of Compressions and Rarefactions are the _______.
A
Stationary waves
B
Vibrating waves
C
Light waves
D
Sound waves
QNo.
106
Sound is produced by _________.
A
Tunning fork
B
Vibration body
C
Energy
D
Waves
QNo.
107
Sound is a form of ________.
A
energy
B
potential
C
waves
D
frequency
QNo.
108
At the crest the displacement is _________.
A
infinity
B
minimum
C
zero
D
maximum
QNo.
109
The product of frequency and wavelength is ________.
A
Speed
B
Distance
C
Velocity
D
Current
QNo.
110
The wavelength of wave is denoted by ________.
A
f
B
T
C
λ
D
K
QNo.
111
The wave speed is product of _______.
A
frequency and speed
B
frequency and wavelength
C
wavelength and speed
D
None of these
QNo.
112
A mass of 2kg is equal to _______.
A
1.000g
B
2.000g
C
2.500g
D
3.000g
QNo.
113
The SI unit of Volume is _________.
A
m³
B
m²
C
kg
D
m
QNo.
114
Which of the following liquids makes the Meniscus opposite to the others?
A
Petrol
B
Alcohol
C
Water
D
Mercury
QNo.
115
The big bang theory was presented by _____.
A
Georges Lemaître
B
Mayim Bialik
C
Edwin Hubble
D
Ralph Asher Alpher
QNo.
116
A Fuse is used to prevent _______.
A
control voltage
B
Shortage
C
Excess of current
D
All of these
QNo.
117
Fuse is connected in _____ in the electric circuit.
A
Parallel
B
Series
C
Perpendicular
D
opposite
QNo.
118
How many millimeter are there in 10 cm?
A
100mm
B
200mm
C
50mm
D
10mm
QNo.
119
Name the S.I unit having symbol cd?
A
Candela
B
Temperature
C
Ampere
D
Second
QNo.
120
Which of the following is not the base quantity?
A
Lenght
B
Mass
C
Time
D
Force
QNo.
121
The matter of our sun is in _________ state.
A
Liquid
B
Gas
C
Solid
D
Plasma
QNo.
122
Which of the following branch of Physics deals with internal structure of earth?
A
Biophysics
B
Geophysics
C
Plasma physics
D
Astrophysics
QNo.
123
Increased in the pressure of a confined fluids given by____________.
A
Newton’s law
B
pascal’s law
C
Archimedes law
D
Boyle’s law
QNo.
124
The device based on the use of atmospheric pressure is_________.
A
Electric heater
B
Microwave oven
C
Vacuum cleaner
D
Refrigerator
QNo.
125
Barometer is used to measure_____________?
A
Density
B
Atmospheric pressure
C
Normal Pressure
D
Vapour pressure
QNo.
126
Atmospheric pressure in pascal is approximately__________.
A
10²
B
10³
C
10⁴
D
10⁵
QNo.
127
The density of mercury in kgm-3 is ____________.
A
1000
B
2000
C
6000
D
13600
QNo.
128
If the speed of the body is halved ,what will be the change in its K.E?
A
Its K.E become double
B
Its K.E becomes four times
C
Its K.E become one-fourth
D
Its K.E become one-third
QNo.
129
When the acceleration of moving object is doubled,its ___________.
A
Acceleration is doubled
B
Weight is doubled
C
K.E is doubled
D
K.E increases four-time
QNo.
130
A 1kg mass has a kinetic energy of 1 joule when its speed is__________.
A
0.45m/s
B
1m/s
C
1.4m/s
D
4.4m/s
QNo.
131
A machine is able to lift 200kg of bricks vertically up to a height of 30m above the ground in 50s.What is the power of the machine?
A
600W
B
1200W
C
60000W
D
3000W
QNo.
132
A brick of mass 40kg is accidentally dropped from a high building. It reaches the Ground with a Kinetic energy of 240J.How high is the building?
A
19m
B
300m
C
192m
D
30m
QNo.
133
Box of mass 40kg is pushed up a 2m inclined plan. what is the work done by 250N force when the box reaches the top of the inclined plane which is 1m above the ground?[Taking g=10ms-2]
A
250J
B
400J
C
500J
D
800J
QNo.
134
The rate of doing work is defined as ___________
A
Energy
B
Force
C
Power
D
Momentum
QNo.
135
The kinetic energy of the decelerating object _________.
A
Increses
B
Decreses
C
Remains constant
D
Is zero
QNo.
136
Work done if the angle between force and displacement is ____________.
A
30
B
45
C
60
D
90
QNo.
137
The value of ‘g’ at surface of moon is___________?
A
9.8ms-2
B
1.63ms-2
C
4.9ms-2
D
8.9ms-2
QNo.
138
The value of “g” at the center of earth is ___________.
A
Maximum
B
1/2g
C
1/4g
D
Zero
QNo.
139
The acceleration due to gravity is denoted by_________.
A
mg
B
g
C
G
D
GMem/R2
QNo.
140
The centripetal force is represented by an equation ____________.
A
v2r
B
v2/r
C
v/r2
D
None of these
QNo.
141
A 2kg object is moving in a cricle with a speed of 4m/s.if radiys of the cricle is 1m, what will be the value of the centripetal force acting on the object?
A
8N
B
16N
C
32N
D
64N
QNo.
142
When centripetal force ceases to act, the centrifugal force becomes_____.
A
Maximum
B
Minimum
C
Zero
D
No effect
QNo.
143
If the radius of the circle is reduced to one half the value of centripetal force becomes
A
Double
B
Half
C
Four times
D
One fourth
QNo.
144
Anti-clock wise torque is taken ____________.
A
Negative
B
Positive
C
Parallel
D
Zero
QNo.
145
A 100N force is acting on x-axis.Its y-component is_______.
A
0N
B
50N
C
100N
D
125N
QNo.
146
A girl just support the mass of33kg suspended from a rope. what is the resultant force acting on the mass?
A
330N
B
0N
C
20N
D
200N
QNo.
147
A vector contain more information than scalar what is this extra information?
A
Direction
B
Size
C
Time
D
Speed
QNo.
148
Momentum is useful in physics because__________.
A
It explains hoe object accelerates
B
It explains how objects heated up
C
It explains how energy created or destroy
D
It helps to explain collisions
QNo.
149
Momentum is equal to __________.
A
force*speed
B
mass*speed
C
mass*velocity
D
mass*acceleration
QNo.
150
Momentum is______________.
A
Destroy in all collision and explosion
B
Conserved in all Explosions and collision
C
Destroy in all collision but conserved in an explosion
D
Destroy in all explosions but conserved in collisions
QNo.
151
What is mass of girl on the earth if her mass on the moon is 60kg?
A
60kg
B
70kg
C
82kg
D
90kg
QNo.
152
A cricket ball of mass 400g is moving with the acceleration of 10ms-2. How much force is required to a ball?
A
4N
B
6N
C
10N
D
20N
QNo.
153
An object of mass 200g is moving in a circler with a constant speed of 5m/s.If the radius is o.5m how much force is required to stop the ball?
A
5N
B
10N
C
15N
D
20N
QNo.
154
Which one is the unit of weight?
A
Newton
B
Kilogram
C
meter
D
meter/sec
QNo.
155
What do we call the pull of gravity on the body?
A
Mass
B
Density
C
Weight
D
Momentum
QNo.
156
A stone fall freely with no air resistance near the surface of earth which quantity remains constant?
A
Velocity
B
Speed
C
Distance traveled in 1s
D
Acceleration
QNo.
157
What must changed when body is accelerated?
A
The force acting on a body
B
The mass of the body
C
The speed of the body
D
The velocity of a body
QNo.
158
The slope of displacement-time graph is called_________.
A
Acceleration
B
Velocity
C
Displacement
D
Speed
QNo.
159
Which of the following is not the example of rotatory motion?
A
The motion of a top
B
The motion of the wheel of a car
C
The motion of blades of a fan
D
The Motion of a pendulum
QNo.
160
A truck accelerates uniformly from 15m/s to 20m/s in 5s. What is the acceleration of the truck?
A
2ms-2
B
1.5ms-2
C
1ms-2
D
2.5ms-2
QNo.
161
The average speed Of bus is 20m/s, how far can it travel in 10s?
A
100m
B
150m
C
200m
D
250m
QNo.
162
If body change its position with respect to surrounding then it will be in a state of _____________.
A
Rest
B
Relative motion
C
Motion
D
Acceleration
QNo.
163
One BTU (British thermal unit) is equal to ___________.
A
1000.06joule
B
1010.06 joule
C
1030.06 joule
D
1055.06 joule
QNo.
164
An ideal diode conducts current in __________.
A
one direction
B
two direction
C
three direction
D
all direction
QNo.
165
___________ materials are weakly attracted by a magnet.
A
Paramagnetic
B
Diamagnetic
C
Ferromagnetic
D
All of these
QNo.
166
What is the resistivity of “Ideal Super Conductors”?
A
less than zero
B
greater than zero
C
Zero
D
One
QNo.
167
N-type and P-type semiconductors are __________.
A
positively charged
B
negatively charged
C
neutral
D
Both A and B
QNo.
168
The minority charge carriers in n-type substances are __________.
A
Electrons
B
Holes
C
Both
D
None of these
QNo.
169
The majority charge carriers in p-type substances are __________.
A
atoms
B
Electrons
C
Holes
D
All of these
QNo.
170
In semiconducting materials holes are behaving like _________ charges.
A
Negative
B
Positive
C
Both
D
None
QNo.
171
The semiconductors are insulators ____________.
A
near 0º C
B
near 0 K
C
near 32 Fº
D
near -273 K
QNo.
172
In insulators the conduction band is _____________.
A
Empty
B
Partially Filled
C
Fully Filled
D
None of these
QNo.
173
The “Shear modulus” is applicable to ___________.
A
Gases only
B
Solids only
C
Liquids only
D
Ice only
QNo.
174
Which of the following shows ratio of strain to stress?
A
Elastic modulus
B
Ultimate tensile stress
C
(Elastic modulus)-1
D
Young modulus
QNo.
175
The resistance against any distortion by solids is _______.
A
Toughness
B
Ductility
C
Lattice
D
Stiffness
QNo.
176
Which statement is not true for Crystals?
A
Having a definite melting point
B
Having cleavage property
C
Having Long-range order
D
Having Short-range order
QNo.
177
The current that can arise due the rate of change of electric flux is called ________.
A
Conduction current
B
Displacement current
C
Conventional current
D
Electronic current
QNo.
178
In EM waves the electric vector and _________ vector are Perpendicular.
A
magnetic
B
electromagnetic
C
Both A and B
D
therma
QNo.
179
Which one of the following is the source of electromagnetic waves?
A
Oscillating body
B
Oscillating charge
C
Magnetic field
D
Changing magnetic field
QNo.
180
Search coils detects ___________.
A
Water
B
Wood
C
Metals
D
Petroleum
QNo.
181
Which of the following is the power factor for AC circuits?
A
sin∅
B
cos∅
C
tan∅
D
All of these
QNo.
182
What is the inductive reactance, If an Inductor of 4mH is connected to DC source?
A
zero Ω
B
50 Ω
C
100 Ω
D
150 Ω
QNo.
183
What is the capacitive reactance for DC circuit?
A
Zero
B
1
C
2πfC
D
infinite
QNo.
184
What is the instantaneous current in Pure capacitive AC circuit?
A
I=Iºcoswt
B
I=Iºsinwt
C
I=Iºcos²wt
D
I=Iºsin²wt
QNo.
185
In pure capacitive AC circuit the current Leads the _________.
A
V by 60º
B
V by 90º
C
V by 180º
D
All of these
QNo.
186
The sinusoidal Alternative current(AC) in a circuit is I=50sin20t. What is the peak value of current?
A
20 A
B
30 A
C
40 A
D
50 A
QNo.
187
A coil of AC generator rotates with a frequency of 50 Hz. What is the angular speed of the coil?
A
50 rev/s
B
100 rev/s
C
100π rad/s
D
200π rad/s
QNo.
188
Transformer steps up or steps down __________.
A
Alternative current (AC only)
B
Direct current (DC only)
C
Power
D
Energy
QNo.
189
The working principle of transformer is based on ___________.
A
Ampere law
B
Ohm law
C
Mutual induction
D
Electromotive force
QNo.
190
The “Inductor” stores ___________.
A
Kinetic energy
B
Electrical energy
C
Magnetic energy
D
Thermal energy
QNo.
191
1 Henry is equal to ______.
A
Volt-Ampere/second
B
Volt-second/Ampere
C
Ampere-second/Volt
D
Ampere/Volt
QNo.
192
Which law is particular form of law of conservation of Energy?
A
Lenz’s law
B
Coulomb law
C
Ohm law
D
Ampere’s law
QNo.
193
‘Voltmeter’ is an ideal if its internal resistance is ________.
A
Zero
B
Small
C
Large
D
Infinity
QNo.
194
“Ameter” is ideal one if its internal resistance is _________.
A
Zero
B
Small
C
Large
D
None of these
QNo.
195
When charge particle enter to uniform magnetic field, there is change in ______.
A
direction of the velocity
B
direction of energy
C
magnitude of the velocity
D
None of these
QNo.
196
The charge to mass ratio of proton is _________.
A
greater than that of electron
B
same as of electron
C
same as of neutron
D
smaller than that of electron
QNo.
197
Ampere’s law is applicable to ___________.
A
any closed path
B
closed circular path only
C
closed rectangular path only
D
circular path
QNo.
198
The unlike poles of the two magnets ___________.
A
always repel each other
B
always attract each other
C
Both A and B
D
None of these
QNo.
199
What is the origin of magnetism?
A
steel
B
charges
C
Iron
D
Conductor
QNo.
200
Which law is also called law of conservation of charge?
A
Coulomb’s law
B
Kirchoff’s current law
C
Charle’s law
D
Ohm law
QNo.
201
Four bulbs 10W, 20W, 30W and 40W are connected in parallel, which bulb will shine more?
A
40W
B
30W
C
20W
D
10W
QNo.
202
Four bulbs of 10W, 20W, 30W and 40W are connected in series, which bulb will shine more?
A
10W
B
20W
C
30W
D
40W
QNo.
203
The electric resistance of material depends upon __________.
A
Dimension
B
temperature
C
Nature of material
D
All of the above
QNo.
204
1 mho =________.
A
Ω
B
Ω⁻¹
C
Ω²
D
Ω³
QNo.
205
_______ are Ohmic material.
A
Tungsten filament
B
Metals
C
Semiconductor diode
D
Thermistor
QNo.
206
In _________ electricity generates from Heat energy.
A
Thermocouples
B
Electrocouples
C
Electrodynamics
D
All of these
QNo.
207
The current flows through 2 m long wire is 1A, then the charge flow in one hour will be __________.
A
1000 C
B
2600 C
C
3600 C
D
4000 C
QNo.
208
Direction of conventional current is ___________.
A
Opposite to the flow of energy
B
Parallel to the flow of electrons
C
Both A and B
D
Opposite to the flow of electrons
QNo.
209
In metallic conductors, the current is due to ___________.
A
the motion of protons
B
the motion of Neutrons
C
the motion of free electrons
D
None of these
QNo.
210
Electrostatics is the branch of physics which deals with the ____________.
A
charges in motion
B
charges at rest
C
charges at the circular motion
D
Both B and C
QNo.
211
_______ is the unit of energy.
A
Watt
B
Coulomb
C
Volt
D
Electron volt
QNo.
212
Negative gradient of electric potential is ___________.
A
Electric flux
B
Electron volt
C
Electric field intensity
D
None of these
QNo.
213
1 Newton per coulomb is equal to __________.
A
Weber
B
Weber/m
C
Joule
D
Volt/m
QNo.
214
When a neutral body is rubbed and it becomes positively charged it ___________.
A
must be lost protons
B
must be lost electrons
C
must gain protons
D
must gain an electron
QNo.
215
Work done during expansion of thermodynamic system is always _______.
A
Constant
B
Zero
C
Positive
D
Negative
QNo.
216
In all reversible processes, the entropy of a system always __________.
A
Constant
B
Increase
C
Decrease
D
None of these
QNo.
217
In which of the following process the Charles first law is applicable?
A
Isochoric process
B
Isothermal process
C
Isobaric process
D
Adiabatic process
QNo.
218
What is the SI unit of “entropy”?
A
coulomb
B
joule
C
joule/Kelvin
D
Watt
QNo.
219
The efficiency of “Carnot engine” is independent of ____________.
A
source temperature
B
working substance
C
Both A and B
D
None of these
QNo.
220
According to Huygens, ________ is wave in nature.
A
Frequency
B
Light
C
Wavelength
D
Speed
QNo.
221
If a ray of light enters a denser transparent medium, then change in __________.
A
Speed of waves
B
Wavelength of waves
C
Density of waves
D
Polarization of waves
QNo.
222
________ property of waves is independent of medium.
A
Amplitude
B
Speed
C
Wavelength
D
Frequency
QNo.
223
Why the edge of a blade does not does not give a sharp Image?
A
due to the interference of light
B
due to Polarization of light
C
due to Diffraction of light
D
Both A and C
QNo.
224
The principle of Michelson interferometer is based upon the division of __________.
A
Amplitude
B
Speed of light
C
Distance
D
None of these
QNo.
225
Light is ___________.
A
Electromagnetic in nature
B
Transverse in nature
C
Both A and B
D
None of these
QNo.
226
The transverse nature of light is verified with ____________.
A
Dispersion
B
Diffraction
C
Polarization
D
Interference
QNo.
227
The central part of Newton’s rings is ___________.
A
always dark
B
always bright
C
always dark and bright
D
always colorless
QNo.
228
X-rays an be diffracted by ____________.
A
Amorphous solids
B
Crystalline solids
C
Amorphous solids
D
None of them
QNo.
229
The colors in soap bubbles are due to __________.
A
Dispersion of light
B
Interference of light
C
Both A and B
D
None of these
QNo.
230
The locus of all points having same phase of vibration is ___________.
A
Wave Phase
B
Wave Frequency
C
Wave Front
D
.Wave amplitude
QNo.
231
Which of the following parameter that varies at the Anti-nodes of stationary waves?
A
Pressure only
B
Density only
C
Both A and B
D
None of these
QNo.
232
_________ waves does not transfer energy through particles of the medium?
A
Sound waves
B
Standing stationary waves
C
Both A and B
D
None of these
QNo.
233
From which of the following the speed of sound waves is independent?
A
Humidity
B
Temperature
C
Pressure
D
Moisture
QNo.
234
Doppler’s effect is applicable to ___________.
A
Sound waves only
B
Light waves only
C
Both A and B
D
None of these
QNo.
235
What is the uncommon characteristic in sound waves and transverse waves?
A
Reflection
B
Diffraction
C
Polarization
D
Dispersion
QNo.
236
What are the points of maximum stress in stationary waves?
A
Nodes
B
Anti-nodes
C
Quarter of nodes and anti-node
D
Both A and B
QNo.
237
Laplace corrected Newton’s formula for speed of sound in air by using ___________.
A
Isotherm condition
B
Adiabatic condition
C
Sophomoric condition
D
Isobaric condition
QNo.
238
Intensity of a wave depends upon ___________.
A
Velocity of waves only
B
Frequency of waves only
C
Square of amplitude of waves only
D
All of these
QNo.
239
The energy transmitted per unit area per unit time is ____________.
A
Power
B
Power per unit area
C
Power per unit time
D
Kinetic energy
QNo.
240
The time period of simple-pendulum in an elevator descending with 10 m/s2 will ___________.
A
Increases
B
Decreases
C
Constant
D
None of these
QNo.
241
The time period of second pendulum is ___________.
A
1 s
B
2.0 s
C
3 s
D
4 s
QNo.
242
Hook’s law correlate the ___________.
A
force and displacement
B
force and extension
C
stress and strain
D
All of these
QNo.
243
Which waves cannot be generated in Gases?
A
Transverse waves
B
Sound waves
C
Both A and B
D
None of these
QNo.
244
_______ waves are medium independent.
A
Sounds waves
B
Thermal waves
C
Water waves
D
Standing waves
QNo.
245
Equation of continuity is the form of law of conservation of ____________.
A
mass
B
energy
C
momentum
D
gravity
QNo.
246
The Bernoulli’s equation is the form of law of conservation of ___________.
A
mass
B
energy
C
torque
D
gravity
QNo.
247
The time rate of flow of fluid is measured with __________.
A
Venturimeter
B
GM Counter
C
Both A and B
D
None of these
QNo.
248
What is the normal human body systolic B.P?
A
100 torr
B
.P?A. 100 torr 110 torr
C
120 torr
D
130 torr
QNo.
249
What is the normal human body diastolic B.P?
A
75-80 torr
B
.P?A. 75-80 torr 95-100 torr
C
100-120 torr
D
120-150 torr
QNo.
250
What is the numerical value of internal resistance among different layers of fluids?
A
All of the below
B
Viscosity
C
Fluid Friction
D
Coefficient of viscosity
QNo.
251
_______ fluid is more viscous?
A
Water
B
Air
C
Honey
D
Moisture
QNo.
252
What are the minimum number of satellites that can cover the whole face of the earth?
A
2
B
3
C
4
D
5
QNo.
253
One Newton-meter-second is equal to ___________.
A
Joule-meter
B
Joule
C
Joule-second
D
Kg m²/s²
QNo.
254
The time period of Geo-stationary satellite is ____________.
A
12 hours
B
24 hours
C
48 hours
D
60 hours
QNo.
255
An 0.2 kg mass is rotated with a string 0.5 m long at 4 rad/s. The tension in the string is ___________.
A
0.5 N
B
0.8 N
C
1.1 N
D
1.6 N
QNo.
256
The speed limit for road banked curved of radius 10 m and banking angle 45 will be __________.
A
10 m/s
B
20 m/s
C
30 m/s
D
40 m/s
QNo.
257
An object revolving in a circle with variable angular velocity possess ___________.
A
Linear acceleration
B
Tangential acceleration
C
Centripetal acceleration
D
All of these
QNo.
258
The ratio of angular speed of minutes’s hand of a watch to second’s hand of a watch is ___________.
A
12:1
B
1:12
C
60:1
D
1:60
QNo.
259
The angle made by an arc of a circle equal to twice its radius is _____.
A
One radian
B
60⁰
C
180⁰
D
Two radians
QNo.
260
If “a.b x c”is equal to 0 then the three vectors are ___________.
A
Coplanar
B
Collinear
C
Parallel
D
Perpendicular
QNo.
261
Which one is Scalar?
A
Displacement
B
Velocity
C
Weight
D
Acceleration
QNo.
262
Which one is Vector?
A
Velocity
B
Work
C
Time
D
Energy
QNo.
263
A vector which represents direction of a vector is called ___________.
A
Unit Vector
B
Position Vector
C
Null vector
D
None of these
QNo.
264
Who Investigate gravitational acceleration?
A
Newton
B
Galileo
C
Einstein
D
Plank
QNo.
265
One mile is equal to ___________.
A
1699m
B
1799m
C
1809m
D
1609m
QNo.
266
Zero is significant only if it ____________.
A
lies to the left of a significant digit
B
is between two digits
C
is to the right of a significant digit
D
is before the decimal point
QNo.
267
Which one of the following is not regarded as a fundamental quantity in Physics?
A
Length
B
Mass
C
Time
D
Weight
QNo.
268
Distance covered by a body in time ‘t’ starting from rest is _________.
A
at²/²
B
Vt
C
a²t/²
D
at
QNo.
269
A simple pendulum has a metal bob, which is _________ charged.
A
Positively
B
Negatively
C
Both A and B
D
None of these
QNo.
270
The area of parallelogram can be find with help of which of the following formula?
A
b*h
B
b+h
C
b(b+h)
D
None of these
QNo.
271
The conductivity of __________ is Infinite.
A
Conductor
B
Superconductor
C
Both A and B
D
None of these
QNo.
272
A boy is dropped from the tower with zero velocity, reaches ground in 4 sec, Height of the tower is ___________.
A
40 m
B
78.4 m
C
120 m
D
160 m
QNo.
273
If you go on increasing the stretching force on a wire in a guitar, then its _________ increases.
A
vibration
B
frequency
C
speed
D
None of these
QNo.
274
The slope of velocity time graph is __________.
A
Acceleration
B
Force
C
Displacement
D
Momentum
QNo.
275
The number “1024” can be written in scientific notation as __________.
A
1/03000097
B
0.000976
C
1.024×10³
D
2¹⁰
QNo.
276
The number of vibrations completed by a body in one second is called _________.
A
Time period
B
Frequency
C
Total Vibrations
D
Displacement
QNo.
277
Skin burns, loss of hairs are due to ___________.
A
genus transformation
B
genetic effect
C
Somatic effect
D
Chromatic effect
QNo.
278
GM counter is used to detect ___________.
A
Alpha particles
B
Beta particles
C
Gamma particles
D
All of these
QNo.
279
One Kilowatt hour is equal to __________.
A
3.5×10⁴ J
B
3.6×10⁵ J
C
3.5×10⁶ J
D
3.6×10⁶ J
QNo.
280
SI unit of power is __________.
A
Coulomb
B
Watt
C
Joule
D
Energy
QNo.
281
The Kilowatt hour is commercial __________.
A
unit of work
B
unit of momentum
C
unit of power
D
unit of energy
QNo.
282
The power 746 watts is equivalent to __________.
A
one-kilowatt hour
B
two kilowatt hour
C
One horsepower
D
two horsepower
QNo.
283
Work done by gravitational force can be __________.
A
All of the below
B
Positive
C
Negative
D
Zero
QNo.
284
Which pair always has same direction?
A
force, displacement
B
force, velocity
C
force, momentum
D
force, acceleration
QNo.
285
Net force acting on a uniformly accelerated body is ____________.
A
Increase
B
decrease
C
become half
D
Constant
QNo.
286
The reaction and action pairs are formed at a ___________.
A
Single Body
B
Pair of Bodies
C
Both A and B
D
None of these
QNo.
287
Time rate of change of ‘linear momentum’ of freely falling object is equal to __________.
A
Kinetic energy
B
Impulse
C
Weight
D
Powe
QNo.
288
The Newton’s 1st law of motion corresponds to ______.
A
law of conservation of linear momentum
B
law of conservation of linear Kinetic energy
C
law of conservation of mass
D
law of conservation of gravity
QNo.
289
Hunter aiming a bird in a tree should aim ____________.
A
a little above the bird
B
a little below the bird
C
Exactly at the bird
D
None of these
QNo.
290
A projectile follow a trajectory that is __________ in shape.
A
Spherical
B
Parabolic
C
Hyberbolic
D
Both A and B
QNo.
291
What is the velocity of projectile at its maximum height?
A
Double
B
Maximum
C
Minimum
D
Zero
QNo.
292
When a body undergoes acceleration ___________.
A
Unchanged
B
its velocity increases
C
its speed decreases
D
a force acts upon it
QNo.
293
Acceleration is produced due to __________.
A
change in direction of motion
B
change in speed
C
Both A and B
D
None of these
QNo.
294
Speed is ___________.
A
always positive
B
always negative
C
can be positive or negative
D
unchanged
QNo.
295
__________ is the branch of mechanics which deals with motion without making any reference to the force.
A
Kinematics
B
Physics
C
Mechanical Physics
D
Both A and C
QNo.
296
The Couple forces keep the body in __________ equilibrium.
A
Complete
B
Translational
C
Rotational
D
Both A and B
QNo.
297
When two are more than two forces acting on a common point, the forces are Known as __________.
A
couple forces
B
Collinear forces
C
Concurrent forces
D
None of the above
QNo.
298
Body in equilibrium must not have ___________.
A
Acceleration
B
Velocity
C
Torque
D
kinetic Energy
QNo.
299
By convention counter clock wise rotation is considered to be ___________.
A
Parallel
B
Perpendicular
C
Negative
D
Positive
QNo.
300
A paratrooper after attaining terminal speed is in ____________.
A
Translational Equilibrium
B
Static Equilibrium
C
Dynamic Equilibrium
D
All of these
QNo.
301
______ are the minimum number of unequal forces that can keep the body in equilibrium.
A
One
B
Two
C
Three
D
Four
QNo.
302
What are the minimum number of equal forces that keeps the body in equilibrium?
A
One
B
Two
C
Three
D
Four
QNo.
303
__________ is the state of a body having no acceleration.
A
Velocity
B
Constant
C
Equilibrium
D
Rest
QNo.
304
The cross product of two vectors is maximum if the two vectors are ___________.
A
Parallel
B
Co-linear
C
Anti-parallel
D
Perpendicular
QNo.
305
The magnitude of cross-product of two vectors is equal to ____________.
A
Area of the square only
B
Any plan area
C
Both A and B
D
None of these
QNo.
306
A unit vector is expressed in the units of __________.
A
Meters
B
Kilograms
C
Kilogram-meter
D
None of these
QNo.
307
Which one of the following is called mass?
A
Proton
B
Electron
C
Both A & B
D
Photon
QNo.
308
Who was written the first book of Physics __________?
A
Kelvin
B
Newton
C
Aristotle
D
None of these
QNo.
309
Which science relates with Study of living things________?
A
Physical science
B
Biological science
C
Both A & B
D
Organ science
QNo.
310
The physics of moving charge particles is called__________?
A
Plasma physics
B
Electro-static’s
C
Electro-magnetic
D
None of these
QNo.
311
The branch of physics which related with the study of living things is called_________?
A
Biological sciences
B
Physical sciences
C
Both A & B
D
Elementary phys
QNo.
312
The branch of Physics which deals with properties of gravitational is called_________
A
Field theory
B
Acoustics
C
Hydro dynamic
D
None of These
QNo.
313
Which branch of Physics deals with nuclear particles such as neutrons, protons and nuclear?
A
Solid State Physics
B
Plasma Physics
C
Mechanical Physics
D
Nuclear Physics
QNo.
314
The Branch of Physics related with study of highly energetic ions is called__________?
A
Elementary articles
B
Article physics
C
Both A & B
D
Plasma physic
QNo.
315
The branch of science plays an important role in engineering is______
A
Biology
B
English
C
Physics
D
All of these
QNo.
316
Physics is related to which of the branches ?
A
Physical sciences
B
Biological sciences
C
Social science
D
None of these
QNo.
317
The heat SI unit is _____
A
Watt
B
Volt
C
Joule
D
None of these
QNo.
318
The wire used to make heating elements in electric kettles and irons are made of which of the following ?
A
nichrome
B
chromel
C
Both A & B
D
fire-clay
QNo.
319
The wire used to make the filament of a light bulb is made of _________
A
Nichrome
B
Chromel
C
Tungsten
D
None of these
QNo.
320
The speed of sound will be maximum when passing through__________
A
vacuum
B
air
C
water
D
iron
QNo.
321
In “Cancer treatment” which rays are Useful?
A
X-rays
B
Gamma rays
C
Both A & B
D
Radio rays
QNo.
322
In the electromagnetic spectrum Which radiation has the lowest frequency ?
A
X-rays
B
Gamma rays
C
Ultraviolet rays
D
Radio rays
QNo.
323
Air is called __________ of heat.
A
conductor
B
insulator
C
radiator
D
evaporator
QNo.
324
The refrigerator works on which of the two processes?
A
condensation and convection
B
convection and radiation
C
Both A & B
D
condensation and evaporation
QNo.
325
Evaporation is called __________ process.
A
cooling
B
Liquefying
C
condensation
D
None of these
QNo.
326
At high altitude the temperature of air is lower as compare to sea level, therefore water boils at __________ temperature.
A
lower
B
higher
C
Both A & B
D
absolute
QNo.
327
The melting point of ice is lowered due to __________ in pressure.
A
increase
B
decrease
C
change
D
None of these
QNo.
328
Short-sight defect could be corrected by a_________
A
Convex lens
B
Concave lens
C
Converging lens
D
All of these
QNo.
329
A camera uses a __________ to form an image on a piece of film at the back
A
Convex lens .
B
Concave lens
C
Diverging lens
D
All of these
QNo.
330
When white light passes through a prism, it splits into __________ colors
A
3
B
5
C
7
D
None of these
QNo.
331
If we add all the 7 colours of rainbow (red, yellow, blue, green, orange, violet and indigo), the resultant colour would be?
A
White
B
Black
C
Maroon
D
All of these
QNo.
332
Red + Green + Blue = ?
A
White
B
Black
C
Maroon
D
None of these