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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
Which of the following is not a unit of power:
Choose an answer
J-sec
Watt
N m/sec
Horsepower
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Question # 2
The time of flight of a projectile motion equal to
Choose an answer
half of the time to reach maximum height
twice the time to reach maximum height
one fourth of time to reach maximum height
time to reach maximum height
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Question # 3
______ plays the same role during angular motion as played by the mass in linear motion
Choose an answer
Torque
Angular Momentum
Moment of a force
Moment of inertia
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Question # 4
The rear wheels of an automobile are rev/sec which is reduced to 38 rad/sec in 5 seconds when brakes are applied. Its angular acceleration is:
Choose an answer
5 rad/sec
2
-10 rav/sec
2
-10 rad/sec
2
-5 rav/sec
2
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Question # 5
When a source of light isat very large distance,the shape of wavefront is:
Choose an answer
Spherical
Cylindrical
Plane
None of these
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Question # 6
According to the electromagnetic wave theory of light, increasing the intensity of incident light should increase the
Choose an answer
number of photoelectrons
size of the photoelectrons
charge on photoelectrons
K.E of photoelectrons
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Question # 7
An induced current can be produced by:
Choose an answer
Constant magnetic field
Changing magnetic field
Varying magnetic field
Constant electric field
None of these
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Question # 8
A body with frequency of would complete one vibration in:
Choose an answer
f seconds
1/f seconds
1 second
f
2
second
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Question # 9
First law of thermodynamics is consequence of conservation of
Choose an answer
Work
Energy
Heat
All of these
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Question # 10
The charge per unit time through any cross-section of a conductor is called
Choose an answer
capacitance
electric power
current
potential difference
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Question # 11
What temperature is the same on Celsius scale as well as on Fahrenheit scale?
Choose an answer
32
°C
-32
°C
-40
°C
-212
°C
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Question # 12
With increase in temperature the viscosity of
Choose an answer
Both gases and liquid increase
Both gases and liquid decrease
Gases increases and of liquid decrease
liquid increases and of gases decreases
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Question # 13
Calculate entropy change when 1.0 Kg ice at 0°C melts into water at 0°C. Latent heat of fusion of ice L
f
= 3.36 x 10
5
J Kg
-1
Choose an answer
1.18 x 10
2
JK
-1
1.20 x 10
4
J Kg
-1
1.23 x 10
3
JK
-1
1.23 x 10
4
J Kg
-1
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Question # 14
The practical use of services by optic fiber is
Choose an answer
Two way television
World processing
Image transmitting and receiving equipment
All of these
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Question # 15
The atoms molecules or ions in a crystalline solids are at room temperature
Choose an answer
Motionless
Vibrate violently
Fixed
Simply vibrate
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Question # 16
The actual efficiency of properly tuned engine is usually not more than
Choose an answer
20% to 35%
25% to 30%
25% to 40%
None of these
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Question # 17
The wave nature of light was first proposed by
Choose an answer
Huygen
Thomas Young
Newton
Compton
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Question # 18
Time of flight of projectile is
Choose an answer
Vi sinθ /g
2Vi Sinθ /g
2Vi sinθ/g
None
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Question # 19
The retarding force of the stream of water on a motor boat moving with a uniform velocity of 30 ms
-1
is 5000 N The power of motor boat is
Choose an answer
1.50 kw
15 kw
105 kw
150 kw
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Question # 20
How many major components of fibre optic communication system are
Choose an answer
4
5
3
2
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Question # 21
In the assessment of total uncertainties when power factor is involved, the percentage uncertainty is
Choose an answer
Added
Multiplied by that power
Divided by that power
None of these
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Question # 22
You are traveling in a car during a thunder storm. In order to protect yourself from lightning you would prefer to
Choose an answer
Remain in car
Take shelter under tree
Get on and lie flat on the ground
Touch the nearest electric pole
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