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NAT I Medical Physics MCQs With Answers

Question # 1

The henry is the unit for

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Resistance

Magnetic flux

Magnetic field

Inductance

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Question # 2

The angle between rectangular components of a vector is

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0°

60°

90°

120°

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Question # 3

In a common base transistor circuit the current gain is 0.98.On changing the emitter current by 5.00 mA, the change in collector current is:

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0.196 mA

2.45 mA

4.9 mA

5.1 mA

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Question # 4

According to the Hooke's law the force required to change the length of a wire by '1' is proportional to

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1^-2

1^-1

1²

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Question # 5

A body moves a distance of 10 m along a straight line under the action of a force of 5 Newtons, if the work done is 25 joules the angle which the force takes with the direction of motion of the body is:

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0°

30°

60°

90°

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Question # 6

What is the average energy of N molecules of monoatomic gas?

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1/2 NkT

NkT

3/2 NkT

5/2 NkT

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Question # 7

Velocity of sound in a diatomic as is 300 m/sec what is its rms velocity

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400 m/sec

40 m/sec

430 m/sec

300 m/sec

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Question # 8

In a simple harmonic motion the kinetic energy (KE) and the potential energy (PE), are such that throughout the motion

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KE remains constant

PE remains constant

KE/PE is constant

KE + PE remains constant

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Question # 9

The nucleus 6C12 absorbs an energetic neutron and emits a beta particle (β) The resulting nucleus is

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₇N¹⁴

₅B¹³

₇N¹³

₆N¹³

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