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NAT I Medical Physics MCQs With Answers
Question # 1
The smooth or steady stream-line flow is know as
Choose an answer
Laminar flow
Turbulent flow
Both a and b
None of the above
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Question # 2
Which of the following particle would experience the largest magnetic force when projected with the same velocity perpendicular to a magnetic field?
Choose an answer
Proton
Electron
He
+
Li
+
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Question # 3
Shunt required in an ammeter of resistance R to decrease its deflection from 30 ampere to 10 ampere is
Choose an answer
R/4
R/3
R/2
R
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Question # 4
A person standing on a rotating platform has his hands lowered He suddenly outstretches his arms.The angular momentum
Choose an answer
Becomes zero
Increases
Decreases
Remains the same
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Question # 5
If the amplitude of sound is doubled and the frequency reduced to one-fourth the intensity of sound at the same point will be
Choose an answer
Increasing by a factor of 2
Decreasing by a factor of 2
Decreasing by a factor of 4
Unchanged
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Question # 6
The minimum wavelength of the X-rays produced by electrons accelerated through a potential difference of V volts is directly proportional to
Choose an answer
√V
V
2
1/√V
1/V
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Question # 7
A body of mass 2 kg is thrown up vertically with K.E of 490 joules If the acceleration due to gravity is 9.8 m/s
2
the height at which the K.E of the body becomes half its original value is give by:
Choose an answer
50 m
12.5 m
25 m
10 m
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Question # 8
In which of the following states does the incandescent substance give continuous spectrum?
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Vapours in atomic state
Vapours in molecular state
Solid or fluid in bulk state
Solid or fluid in plasma state
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Question # 9
Bernoulli's equation is based upon law of conservation
Choose an answer
Mass
Momentum
Energy
None of these
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