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Question

Sound waves with a frequency of 20 Hz to 20,000 Hz are called_______.



A

Audible sounds

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B

Inaudible sounds

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C

Infrasonics

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D

Ultrasonics

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Solution

The correct option is D

Audible sounds


Sound waves above 20,000 Hz are ultrasonics. Sound waves below the frequency of 20Hz are infrasonics. Both are inaudible sounds for humans. Sound waves between 20Hz to 20,000Hz are audible sounds.


Physics

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