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Online Tests
Physics General Science Test Medium Mode MCQs With Answers
Question # 1
When quarter of a circle is completed, the phase of vibration is:
Choose an answer
90
°
180
°
45
°
360
°
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Question # 2
Huygen principle is used to determine:
Choose an answer
Speed of light
Location of wavefront
About polarized or unpolarized light
None of them
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Question # 3
In the text book, the transistor amplifier circuit is a:
Choose an answer
Common emitter circuit
Common collector circuit
Common base circuit
Any of these
None of these
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Question # 4
A current carrying conductor sets up its own:
Choose an answer
Electric field
Nuclear field
Magnetic field
Both (A) and (C)
All of these
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Question # 5
The most abundant isotope of neon is
Choose an answer
neon-20
neon-21
neon-22
neon-23
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Question # 6
The current through a metallic conductor is due to the motion of
Choose an answer
protons
neutrons
electrons
free electrons
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Question # 7
The spectrum emitted from hydrogen filled discharge tube is:
Choose an answer
Line spectrum
Discrete spectrum
And spectrum
Absorption spectrum
Both (A) and (B)
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Question # 8
When a platinum wire is heated, it appears orange red at
Choose an answer
500
°C
900
°C
1100
°C
1300
°C
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Question # 9
Compton studied the scattering of x-rays by loosely bound electrons from:
Choose an answer
NaCl crystal
Graphite crystal
Zirconia
Copper crystal
None of these
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Question # 10
In n-p-n transistor, emitter base junction is kept
Choose an answer
reversed
forward biased
may be reversed or may be forward biased
none of these
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Question # 11
The direction of velocity is along the direction of
Choose an answer
distance
displacement
acceleration
all of them
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Question # 12
A person is sitting in a traveling train and facing the engine.He tosses up a coin and the coin falls behind him.It can be concluded that the train is
Choose an answer
Moving forward and gaining speed
Moving forward forward and losing speed
Moving forward with uniform
Moving backward with uniform speed
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Question # 13
If the slits in YDS experiment are made closer, fringe spacing will:
Choose an answer
Increase
Decrease
Remain same
None of above
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Question # 14
The SI unit of stress is
Choose an answer
Nm
2
Nm
dynesm
-1
N
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Question # 15
The uniformly accelerated equations are useful only for
Choose an answer
Angular motion
Curved motion
Linear motion
None of these
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Question # 16
Charles Coulomb measured the force between two charges in
Choose an answer
1860 AD
1890 AD
1874 AD
1871 AD
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Question # 17
The regular array of atoms in a crystal forms a natural diffraction grating of spacing typically
Choose an answer
≈ 10
-10
m
≈ 10
-12
m
≈ 10
-8
m
≈ 10
-9
m
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Question # 18
The modulus of elasticity of a liquid is:
Choose an answer
Zero
1
Infinity
A value not one of those mentioned above
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Question # 19
No practical heat engine can be pergectly
Choose an answer
Ideal
Reversible
Irreversible
None of these
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Question # 20
The approximate efficiency of silicon solar cell is
Choose an answer
5 - 10%
9 - 12%
12 - 16%
15 - 18%
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Question # 21
The equations for uniformly accelerated motion can also be applied to free fall motion of the objects by
Choose an answer
V
f
= 0
Simple 'a'
a by g
None of these
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Question # 22
In the absence of any force acting on a body
Choose an answer
its momentum changes with distance
its momentum is conserved
its momentum is not conserved
its momentum changes with time
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