The loudness of sound is measured in MCQ with Answer and Explanation

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The loudness of sound is measured in

A. Watt

B. Hertz

C. Meter

D. Decibel

Answer: Option D

Solution (By JKSSB Mock Tests)

Decibel (dB) measures intensity level.

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Question #1

The SI unit of charge is

A. Ampere

B. Coulomb

C. Ohm

D. Volt

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Correct Answer: Option B

Explanation:
Coulomb (C).

This question belongs to: Science Physics

Question #2

The instrument used to measure atmospheric humidity is

A. Hygrometer

B. Manometer

C. Hydrometer

D. Barometer

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Correct Answer: Option A

Explanation:
Hygrometer measures humidity.

This question belongs to: Science Physics

Question #3

When a body is taken from equator to pole, its weight

A. Decreases

B. Becomes zero

C. Increases

D. Remains same

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Correct Answer: Option C

Explanation:
g is slightly higher at poles (9.83 m/s²) than equator (9.78 m/s²) due to Earth's rotation (centrifugal effect) and equatorial bulge. Weight = mg, so weight increases slightly. Mass constant.

This question belongs to: Science Physics

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