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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
For production of beats the two sources must have
Choose an answer
Different frequencies and same amplitude
Different frequencies
Different frequencies, same amplitude and same phase
Different frequencies and same phase
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Question # 2
What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?
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1 MHz
10 Hz
1 GHz
100000 Hz
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Question # 3
Calculate the amount of charge flowing in 2 minutes in a wire of resistance 10
Ω
when a potential difference of 20 V is applied between its ends
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120 C
240 C
20 C
4 C
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Question # 4
Which of these is not a radiation detector
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Wilson cloud chamber
cyclotron acceleration
Geiger Miller counter
solid state detector
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Question # 5
In half wave rectification
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both halves of the input voltage is used
only one half of the input voltage is used
either of these
none of these
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Question # 6
Area under the force displacement graph gives
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Power
Work
Heat
Energy
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Question # 7
The inkjet printer ejects a thin stream of:
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Water
Oil
Ink
Any of above
None of these
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Question # 8
An emf is set up in a conductor when it:
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is kept in a magnetic field
is kept in a electric field
Move across a magnetic field
Both (A) and (B)
None of these
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Question # 9
An atom in which there is a resultant magnetic field, behaves like a tiny magnet and is called as
Choose an answer
magnetic
magnetic dipole
magnetic monopole
none of them
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Question # 10
Light appears to travel in straight line because
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It is not absorbed by the atmosphere
It is refracted by the atmosphere
Its wavelength is very small
Its velocity is very large
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Question # 11
Unit of impulse in
Choose an answer
Newton
Kg m
Kg m/s
Joule
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Question # 12
When a body movies in a circle in the counter clockwise direction the angular displacement Δθ is taken as
Choose an answer
Positive
Negative
Both ways
None of these
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Question # 13
The units of modulus of elasticity are same as that of
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Stress
Strain
Force
None
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Question # 14
The dimensional formula for modulus of rigidity is:
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ML
-1
T
1
ML
-2
T
2
MLT
1
ML
-1
T
-2
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Question # 15
The conductivity of super conductor at critical temperature becomes
Choose an answer
Zero
1
Infinite
Negative
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Question # 16
Suppose the water flows out from a pipe at 3 kgs
-1
and its velocity changes from 5 ms
-1
to zero on striking the ball, then force is
Choose an answer
5.3 N
15 N
17.3 N
19.2 N
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Question # 17
Five equal forces of 10N each are applied at one point and all are lying in one plane.If the angles between them are equal,the resultant force will be:
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Zero
10 N
20 N
10 √2 N
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Question # 18
The term impulse means, the force applied on a body for
Choose an answer
Permanently
Temporary
Very short interval of time
None of these
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Question # 19
The light source in the transmitter can be either
Choose an answer
Light emitting diode
Semiconductor laser
Light emitting in an invisible infra red
All of these
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Question # 20
The slope of the tangent at any point on the curve gives the value of the
Choose an answer
average velocity at that point
instantaneous velocity at that point
average acceleration at that point
instantaneous acceleration at that point
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Question # 21
Newton's third law also says that action and reaction forces always act on the
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Different bodies
Same bodies
Only one body
None of these
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Question # 22
The charge determined by the Millikan's experiment is
Choose an answer
q = qvd/m
q = mvd/g
g = mgd/v
None of these
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