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NAT I Engineering Physics MCQs With Answers

Question # 1

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

Choose an answer

Velocity

Frequency

Wavelength

All the above

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Question # 2

What remains constant in the field of central force?

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Potential energy

Kinetic energy

Angular momentum

Linear momentum

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Question # 3

The motion without consideration of its cause is studied in:

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Kinematics

Mechanics

Statics

Modern Physics

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Question # 4

What will be the duration of the day and night (in hour) if the diameter of the earth is suddenly reduced to half its original value the mass remaining constant?

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Question # 5

The peak voltage in a 200 volt A.C supply is nearly

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220

253

311

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Question # 6

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 # 7

The volt/metre is the unit of:

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Potential

Work

Force

Electric field intensity

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Question # 8

What will be the ratio of the distance moved by a freely falling body from rest in 4^th and 5^th seconds of journey?

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4 : 5

7 : 9

16 : 25

1 : 1

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Question # 9

Which of the modulus of elasticity is involved in compressing a rod to decrease its length?

Choose an answer

Young's modulus

Bulk modulus

Modulus of rigidity

None of the above

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Question # 10

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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Question # 11

Which of the following is equal to:

joule x ohm / volt x second ?

Choose an answer

Ampere

Volt

Watt

Tesla

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