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Online Tests
1st Year Fsc Physics Online Test MCQs With Answers
Question # 1
The formula of centripetal acceleration is
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Question # 2
Han discovered uranium fissionin
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1940
1938
1935
1939
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Question # 3
For normal adjustment what is the length of astronomical telescope if focal lengths of astronomical telescope if focal lengths of objective and eye piece are 100 cm 20 cm respectively.
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10 cm
20 cm
5 cm
120 cm
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Question # 4
International Telecommunication satellite
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4,6,8 and 10 Hz
4,6,11 and 14 GHz
4,6,8 and 12 Hz
4,8,11 and 16 GHz
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Question # 5
The SI unit of angular momentum is
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J.S-2
J.S-1
J.S
J.m
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Question # 6
Total change in momentum of an isolated system is
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Always (+) ve
Always (-) ve
Has maximum value
Zero
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Question # 7
The number of significant figure in 8.80 x 10
6
kg is
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1
3
6
5
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Question # 8
Two tuning forks of frequencies 240 Hz and 243 Hz are sounded together, the number of beats per second is.
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Zero
2
3
4
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Question # 9
Which is the process in which temperature of the system remains constant.
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Adiabatic process
Isochoric process
Isothermal process
Isobaric process
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Question # 10
As we go from pole to equator of earth, the value of 'g'
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Increase
Decrease
Remain constant
Zero
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Question # 11
Which is unimportant in describing the satellites orbit.
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Distance of satellite from earth's center
Gravitational constant G
Mass of satellite
Mass of earth
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Question # 12
If the temperature of sink is absolute zero then the efficiency of heat engine engine should be.
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100%
50%
Infinite
zero
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Question # 13
The kinetic energy of molecules of an ideal gas at absolute zero is
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Very low
Very high
Zero
First increases then decreases
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Question # 14
The equations of motion hold good for
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Variable acceleration
Uniform acceleration
Centripetal acceleration
All of these
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Question # 15
Which material has maximum viscosity
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Glycerin
Plasma
Methanol
Water
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Question # 16
A bat finding its correct location by sending
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Matter waves
Ultrasonic waves
Infrasonic waves
electromagnetic waves
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Question # 17
The difference between two molar capacities is equal to.
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Plank's constant
General gas constant
Molar gas constant
Boltzmann constant
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Question # 18
Work is negative when angle between F and d is
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45
o
0
o
90
o
180
o
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Question # 19
Which of the following is not directed along the fixed axis of rotation.
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Angular displacement
Angular momentum
Centripetal acceleration
Angular acceleration
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Question # 20
The time rate of change of angular displacements called.
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Linear velocity
Linear speed
Angular velocity
Angular speed
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Question # 21
This is used for
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Co-efficient of friction
Co-efficient of expansion
Co-efficient of viscosity
Co-efficient of contraction
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Question # 22
If the object is at 5 cm from the lens of simple microscope than its magnifying power will be.
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5
10
15
25
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