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Identify the unit of measuring ...

Identify the unit of measuring the intensity of sound.

A

Knots

B

Ampere

C

Candela

D

Decibels

Text Solution

Verified by Experts

The correct Answer is:
D
Intensity of sound is measured in Decibels. The difference between the loudest and faintest sounds that hum Sol. can hear is about 120 dB, a range of one-million in amplitude. The range of human hearing is generally considered to be 20 Hz to 20 kHz, but it is far more sensitive to sounds between 1 kHz and 4 kHz.
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