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NAT I Computer Science Physics MCQs With Answers
Question # 1
Two bodies of masses m
1
and m
2
have equal momentum their kinetic energies E
1
and E
2
are in the ratio
Choose an answer
√m
1
: √m
2
m
1
:
m
2
m
2
:
m
1
m
1
2
:
m
2
2
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Question # 2
Band spectrum in produced by
Choose an answer
H
He
H
2
Na
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Question # 3
Two electric bulbs of 200 W and 100 W have same voltage.If R1 and R2 be their resistance respectively then
Choose an answer
R
1
= 2R
2
R
2
= 2R
1
R
2
= 4R
1
R
1
= 4R
2
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Question # 4
With the increase of temperature viscosity
Choose an answer
Increase
Decrease
Remains same
Doubles
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Question # 5
With the propagation of a longitudinal wave through a material medium the quantities transmitted in the propagation direction are
Choose an answer
Energy momentum and mass
Energy
Energy and mass
Energy and linear momentum
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Question # 6
The velocity of falling raindrops attains limited value because of
Choose an answer
Up thrust of air
VIscous force exerted by air
Surface tension effect
Air currents atmosphere
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Question # 7
Quantity that remains unchanged in a transformer is
Choose an answer
Voltage
Current
Frequency
None of these
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Question # 8
Which of the following four statements is false?
Choose an answer
A body can have zero velocity and still be accelerated
A body can have a constant velocity and still have a varying speed
A body can have a constant speed and still have a varying velocity
The direction of the velocity of a acceleration is constant
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Question # 9
To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined
Choose an answer
Parallel
Antiparallel
At angle 60°
Perpendicular to each other
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Question # 10
The dot product of two vectors is negative when
Choose an answer
They are parallel vectors
They are anti-parallel vectors
They are perpendicular vectors
None of the above is correct
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Question # 11
In which case dose the potential energy decreases?
Choose an answer
On compressing a spring
On stretching s spring
One moving a body against gravitational force
One the rising of an air bubble in water
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