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Audible and Inaudible Sounds

The frequency...

Question

The frequency of a wave is 5 Hz. It refers to (type of wave) ___________.

A

ultrasonics

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B

microwaves

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C

infrasonics

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D

radio waves

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Solution

The correct option is C infrasonics
The waves below the frequency of 20 Hz are infrasonic waves. So, the wave of 5 Hz is also an infrasonic wave.

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