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NAT I Medical Physics MCQs With Answers

Question # 1

A body is dropped from a tower with zero velocity reaches ground in 4s. The height of the tower is about

Choose an answer

80 m

20 m

160 m

40 m

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Question # 2

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 # 3

To explain his theory Bohr used

Choose an answer

Conservation of linear momentum

Conservation of angular momentum

Conservation of quantum frequency

Conservation of energy

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Question # 4

The magnetic moment of a circular coil carrying current is

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Directly proportional to the length of the wire in the coil

Inversely proportional to the length of the wire in the coil

Directly proportional to the square of the length of the wire in the coil

Inversely proportional to the square of the length of the wire in the coil

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Question # 5

Which of the following is a scalar quantity

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Density

Displacement

Torque

Weight

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Question # 6

When boron is added as an impurity to silicon the resulting material is

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n type conductor

n type semiconductor

p-type conductor

p-type semiconductor

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Question # 7

The percentage errors in the measurements of mass and speed are 2% and 3% respectively. How much estimate of the kinetic energy obtained by measuring mass and speed

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11%

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Question # 8

A man pushes a wall but fails to displace it. He does:

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Negative work

Maximum positive work

Positive work but not maximum

No work

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Question # 9

The modulus of rigidity of a liquid is

Choose an answer

Zero

Infinity

A value not one of those mentioned above

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