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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
To observe interference of light, the condition, which must be met with is that the sources must be:
Choose an answer
Monochromatic
Phase coherent
Both of above
None of above
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Question # 2
Most practical applications of electricity involve
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Charges at rest
Charges in motion
Electrons at rest
Atoms in motion
Molecules in motion
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Question # 3
If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:
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Force
Energy
work
impulse
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Question # 4
In the formula for finding the speed of waves in the spring, unit of m in SIn units is:
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kg
kg-meter
kg/meter
Meter/kg
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Question # 5
The Einstein's changes in length, mass and time are not observed in common life because
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We dont observer then seriously
The masses are too large
Their speed is too small than the speed of right
All of the above
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Question # 6
The work done by the system on its environment is considered as
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positive
negative
zero
any one of them
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Question # 7
The substance in which atoms cooperate with each other in such a way so as to exhibit a strong magnetic effect, are called
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diamagnetic substances
ferromagnetic substances
paramagnetic substances
all of them
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Question # 8
Physics deals with the study of
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Matter
Energy
Both of them
Human Body
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Question # 9
The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:
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f
2 f
3 f
1/2 f
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Question # 10
Work done is maximum when angle between force and displacement is:
Choose an answer
0
°
90
°
180
°
None of these
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Question # 11
A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor
Choose an answer
Increases
Decreases
Remain unchanged
Becomes infinite
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Question # 12
Light has:
Choose an answer
Wave nature
Particle nature
Dual nature
None of them
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Question # 13
Light waves are:
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Transverse waves
Longitudinal waves
Compressional waves
None of them
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Question # 14
Which of the following is not an advantages of using optical fibres over copper cables?
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signal attenuation
number of signals carried per wire
cost of installation
none of the above
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Question # 15
In an inkjet printer, the toner drops are
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Charged
Not charged
Charged and deflected
None of these
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Question # 16
The distance between the objective and eye-piece of a telescope in normal adjustment is
Choose an answer
f/
0
-
f
e
f
0
+
f
e
2f
e
-
f
e
None of these
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Question # 17
Any person like an airline pilot, sailor can find his position on Earth surface by pocket size instrument within accuracy of
Choose an answer
5 m
10 m
10.5 m
11 m
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Question # 18
When a shell explodes in mid-air, its fragments fly off in
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One direction
Opposite direction
Different direction
None of these
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Question # 19
If temperature of the sink is decreased, efficiency of a carnot engine.
Choose an answer
Remains constant
Decreases
Increases
None of these
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Question # 20
A magnetic field
Choose an answer
Always exerts a force on a charged particle
Never exerts a force on a charged particle
Exerts a force on a charged particle if it is moving across the magnetic lines of force
Exerts a force on a charged particle if it is moving along the magnetic lines of force.
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Question # 21
A metal plate of thickness half the separation between the capacitor plates of capacitance C is inserted.The new capacitance is
Choose an answer
C
C/2
Zero
2C
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Question # 22
A _____ lens is used in the apparatus to get newton's ring:
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Plano-concave
Plano-convex
Convexo concave
Double covex
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