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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
A man fires a bullet of mass 200 g at a speed of 5 m/s. The gun is of one kg mass. By what velocity the gun rebounds backwards?
Choose an answer
0.1 m/s
10 m/s
1 m/s
0.01 m/s
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Question # 2
The SI unit of spring constant is identical with that of:
Choose an answer
Force
Surface tension
Pressure
Loudness
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Question # 3
The value of current gain of n-p-n transistor is of the order of
Choose an answer
tens
hundreds
thousands
ten thousands
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Question # 4
Bernoulli's equation is based upon law of conservation
Choose an answer
Mass
Momentum
Energy
None of these
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Question # 5
A pair of quark and antiquark makes a:
Choose an answer
Meson
Baryon
Proton
Neutron
None of these
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Question # 6
In the formula R = N x m for diffraction grating, N denotes:
Choose an answer
No. of lines/cm
No. of lines/meter
Total number of lines
None of above
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Question # 7
Conversion of alternating current into direct current is called
Choose an answer
amplification
rectification
conduction
polarization
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Question # 8
Moment of inertia depends upon:
Choose an answer
Mass
Selection of axis of rotation
Both of them
None of these
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Question # 9
A train cover 90 km in half an hour. the time taken by it to travel 15 km will be:
Choose an answer
20 minutes
48 minutes
10 minutes
5 minutes
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Question # 10
During the projectile motion, the horizontal component of velocity
Choose an answer
changes with time
remains constant
becomes zero
decreases with time
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Question # 11
A diatomic gas molecule has
Choose an answer
translational energy
rotaional energy
vibrational energy
all of them
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Question # 12
Which light travels faster in optical fibres?
Choose an answer
visible light
ultraviolet
infra-red
any one of them
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Question # 13
Universal gas constant has the unit of
Choose an answer
Newton/°C
Newton/K
J/mol K
Watt/kelvin
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Question # 14
For constructive interference the path difference is
Choose an answer
mλ
(m-1)λ
m
2
λ
1/2mλ
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Question # 15
The equations for uniformly accelerated motion for body moving at
Choose an answer
Acceleration
Constant acceleration
Instantaneous acceleration
None of these
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Question # 16
A body is dropped from a tower reaches the earth surface in 4 sec where g is 10 m/s
2
the height of tower is
Choose an answer
80 m
20 m
160 m
40 m
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Question # 17
In carnot cycle, there are adiabats
Choose an answer
One
Two
Three
Four
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Question # 18
In case of diffraction grating, unit of grating element is:
Choose an answer
Centimeter
Kilometer
As that of g
as that of angle
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Question # 19
During adiabatic expansion change of 2 moles of gas the internal energy is 100 j, the work done this expansion is
Choose an answer
Zero
-100 J
200 J
100 J
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Question # 20
Identify practical use of superconductor
Choose an answer
MRI
Super computer
Magnetic levitation train
All above
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Question # 21
When a vector is multiplied by a scalar, the product of the quantity will be
Choose an answer
A new vector quantity
New direction
Same direction
a and c
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Question # 22
A solid subjected to deformation along one dimension
Choose an answer
Only have tensile stress
Only have compressive stress
Have both tensile and compressive stress
None of them
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