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Question

Elephants produce ……………sound :
(a) ultrasonic
(b) infrasonic
(c) supersonic
(d) none of the above

Category: Propagation of Sound Waves Class 9 ICSE

March 28, 2024

Answer

(b) infrasonic

Reason — Elephants and whales can produce infrasonic sounds of frequencies less than 20 Hz.

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