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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
A high temperature, the proportion of shorter wavelengths radiation, emitted by the body
Choose an answer
decreases
first increases then decreases
increases
any one of them
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Question # 2
The least distance of distinct vision is:
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10 cm
25 cm
50 cm
100 cm
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Question # 3
At higher frequency of the alternating current, the capacitive reactance X
c
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Increases
Decreases
Remains the same
Increases only when the voltage increases
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Question # 4
The special theory of relativity treats problems invoving
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inertial frame of references
accelerating frame of references
both of these
none of these
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Question # 5
In AND gate, the output is 1 if:
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Both inputs are 0
Both inputs are 1
Only one input is 0
Both (A) and (B)
Both (A) and (C)
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Question # 6
The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains
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3 more neutrons
3 more electrons
3 more protons
3 more ions
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Question # 7
A closed surface contains two equal and opposite charges. The net electric flux from the surface will be
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Negative
Positive
Infinite
Zero
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Question # 8
The energy is found from Einstein's mass energy relation is called
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binding energy of electron
binding energy of proton
binding energy of neutron
binding energy of nucleus
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Question # 9
Resolving power in mth order diffraction for grating is given by:
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R = N/m
R = m/N
R = N x m
None of these
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Question # 10
The amplitude of oscillation of each atom in a metallic crystal rises with the
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rise in temperature
decrease in temperature
even temperature remains constant
all of them
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Question # 11
A particle of mass 5.0 mg moves with a speed of 8.0 m/s. Its de-Brogile wavelength is
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1.66 m
1.66 x 10
-10
m
1.66 x 10
-29
cm
1.66 x 10
-29
m
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Question # 12
A point on the surface of the mirror where principle axis meets is called
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Focus
Centre of curvature
Pole
Aperture
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Question # 13
The projectile attains maximum horizontal range when it is projected at an angle of
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30
°
45
°
60
°
75
°
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Question # 14
The dimensions of ½at
2
are of
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length
Velocity
Acceleration
TIme
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Question # 15
Planck's constant has the dimensions of:
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Energy
Momentum
Frequency
Angular momentun
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Question # 16
Steradian is an angle of
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One dimensional angle
Two dimensional angle
Three dimensional angle
None of these
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Question # 17
The error in the measurement of radius of sphere is 0.3% The maximum error in the measurement of its volume
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0.6%
0.9%
0.3%
(4/3)
π(0.3)
2
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Question # 18
If focal length of objective is increased
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Magnifying power of compound microscope decreased
Magnifying power of astronomical telescope increases
The diameter of the objective lens
None of these
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Question # 19
Which row is correct for fission and for fusion?
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Produces larger nuclei
Produces larger nuclei
Produces smaller nuclei
Produces smaller nuclei
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Question # 20
One erg is equal to
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10
5
j
10
7 j
10
-3
j
10
-7
j
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Question # 21
The distance between different interference fringes are:
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Variable
Same
Different
None of these
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Question # 22
The magnitude of torque is equal to the product of the force and the moment arm. The moment arm is
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The distance between the point and the point of the action of the force
The maximum distance between the pint and the line of action of the force
The minimum distance between the pivot point and the line of action of the force
All of these
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