Sound of frequency less than 20 Hz is known as …………….. sound.

Sound of frequency less than 20 Hz is known as …………….. sound.

A) infrasonic

B) ultrasonic

C) echo

D) reverberation

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct option is A) infrasonic

5 views Answered 2023-02-05 15:29

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