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NAT I Medical Physics MCQs With Answers

Question # 1

If in a moving coil galvanometer a current 1 produces a deflection θ then

Choose an answer

i ∞ tan θ

i ∞ θ²

i ∞ θ

i ∞ √θ

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Question # 2

The number of translation degrees of freedom for a diatomic gas is

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Question # 3

In an L-R circuit time constant is that time in which current grows from zero to the value

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0.63 I_o

0.50 I_o

0.73 I_o

I_o

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Question # 4

At constant volume temperature is increased then

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Collision on walls will be less

Number of collisions per unit time will increase

Collisions will be in straight lines

Collisions will not change

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Question # 5

The velocity of a particle at an instant is 10 m/s and after 5 s the velocity of the particle is 20 m/s.The velocity 3s before in m/s is:

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Question # 6

When sound waves travel from air to water which of these remains constant?

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Velocity

Frequency

Wavelength

All the above

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Question # 7

Which of the following lists of physical quantities consists only of vectors:

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Time,temperature,velocity

Force,volume,momentum

Velocity,acceleration,mass

Force,acceleration,velocity

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Question # 8

A moving charge will gain energy due to the application of

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Electric field

Magnetic

Both of these

None of these

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Question # 9

If the dot product of two non-zero vectors vanishes the vectors will be

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In the same direction

Opposite to each other

Perpendicular to each other

Zero

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