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Online Tests
1st Year Fsc Physics Online Test MCQs With Answers
Question # 1
Dot product of two non zero vectors is zero it angle between them is.
Choose an answer
30
o
60
o
45
o
90
o
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Question # 2
The equations of angular motion hold only in case when the axis of rotation is
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Moving
Fixed
Both a and b
None of these
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Question # 3
If the slope of the velocity time graph remain constant then body is moving with.
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Uniform velocity
Negative variable acceleration
Variable acceleration
Uniform acceleration
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Question # 4
A communication satellite is used ot reflect the signal of.
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Microwaves
Radio waves
y rays
x -rays
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Question # 5
The subtraction of a vector is equivalent to the addition with
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Same direction
Perpendicular direction
Reversed direction
All of these
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Question # 6
The unsteady flow of a fluid is called
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Stream line
Turbulent flow
Average flow
Viscous flow
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Question # 7
Frequency range of hearing of cats is.
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20-20000 Hz
10- 10000 Hz
60-20000 Hz
60-70000 Hz
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Question # 8
If the tension a stretched string is made four times then the velocity of wave.
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Remains same
Is halved
Becomes twice
Becomes 4 times
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Question # 9
Michelson's interferometer can be used ot find the
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Velocity of light
Wavelength of light
Velocity of sound
Wavelength of sound
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Question # 10
Kg ms-1 can also be written as
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Nm
Ns
Ns-1
Js
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Question # 11
The largest satellite system is managed by
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116 countries
126 countries
136 countries
140 countries
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Question # 12
A Carnot engine has an efficiency of 50% when its sink temperature is at 27
o
C. The temperature of source.
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273
o
C
300
o
C
327
o
C
373
o
C
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Question # 13
Number of seconds in a day is
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9000 sec
3600 sec
86400 sec
43200 sec
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Question # 14
A phenomenon by which energy is dissipated from the oscillating system is called.
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Forced oscillation
Free oscillation
Damping
Simple harmonic motion
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Question # 15
The relation between the speed and hoop can be written as
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2
4
1/2
1/4
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Question # 16
If the temperature of a gas is constant then <1/2 mv2> of the molecules of gas will be.
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Constant
Zero
Increase
Decrease
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Question # 17
the systolic pressure of normal healthy person is.
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120 torr
130 torr
115 torr
110 torr
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Question # 18
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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