Question

What is the unit used to measure noise?

A.

Lumen

B.

Hertz

C.

Decibel (dB)

D.

Watt

Correct option is C


The correct answer is (c) Decibel (dB)
Explanation:
· Noise levels are measured in decibels (dB).
· It indicates the intensity or loudness of sound.
· Higher dB = louder and more harmful sound.
Information Booster:
· Normal conversation: 40–60 dB
· Traffic noise: 70–85 dB
· Above 85 dB causes hearing damage with prolonged exposure.

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