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Online Tests
1st Year Fsc Physics Online Test MCQs With Answers
Question # 1
The increase in thermal pollution of environment means.
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Increase in the entropy
Decrease in the entropy
Entropy remains constant
Entropy becomes zero
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Question # 2
Sound travel faster in
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CO2
H2
O2
He
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Question # 3
The law of conservation of mass gives us
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Equation of continuity
Stock's law
Bernoulli's equation
Viscosity
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Question # 4
the work done in isochoric process is.
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Constant
Variable
Zero
Depend upon condition
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Question # 5
When hot and cold water are mixed, the entropy.
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Decreases
Increases
Remain constant
Zero
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Question # 6
2 radian = ____
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2 m
4 m
57.3 m
114.6 m
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Question # 7
Unit of impulse is equivalent to that of.
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Force
Momentum
Acceleration
Velocity
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Question # 8
Speed of sound in copper is
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38000 ms-1
3600 ms-1
3500 ms-1
3400 ms-1
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Question # 9
The motion of a simple pendulum is the example of
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Vibratory motion
Rotatory motion
Periodic motion
Both a and c
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Question # 10
If the pressure of a gas is doubled, then speed of sound is.
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Doubled
Become half
Not affected
Increases by four times
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Question # 11
Who did give the correct formula for the speed of sound in air?
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Boyle
Laplace
Newton
Einstein
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Question # 12
When the rocket moves away from the earth, the work against gravity
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Remains constant
Varies directly with distance
Varies inversely with distance
Varies inversely with square of distance
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Question # 13
All point of the rigid body rotating about a fixed axis do not have same.
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Angular acceleration
Angular speed
speed
Angular displacement
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Question # 14
The waves used in radar speed trap are
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Longitudinal
Sound wave
Micro waves
Matter waves
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Question # 15
The instrument which detects the instant as which the external pressure becomes equal to the systolic pressure is called.
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Manometer
Sphygmomanometer
Barometer
Stethoscope
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Question # 16
The wave form of SHM is.
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Sine wave
Cosine wave
Tangent wave
Square wave
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Question # 17
The law of conservation of energy is the basis of.
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Stream line flow
Equation of continuity
Bernoulli's equation
Venture relation
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Question # 18
SI units of time was redefined in
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1900
1967
1960
1983
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