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Infrasonic, Ultrasonic and Audio waves

Infrasonic fr...

Question

Infrasonic frequency range is

Below 20 Hz
20 Hz to 20kHz
Above 20 kHz
No limit

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Solution

The correct option is A
Below 20 Hz

The sound which has a frequency below 20 Hz is known as infrasonic sound.
Hence, the correct option is (A).

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Similar questions

Complete the following sentences :

(a) An average person can hear sound of frequencies in the range ___ to ___.

(b) Ultrasound is of frequency ___ .

(c) Infrasonic sound is of frequency ___ .

(d) Bats can produce and hear ___ sound.

(e) Elephants produce ___ sound.

Q. (a) What are infrasonic waves ? Name two animals which produce infrasonic waves.
(b) What are ultrasonic waves ? Name two animals which can produce ultrasonic waves.
(c) The audible range of frequencies of an average human ear is from 20 Hz to 20 kHz. Calculate the corresponding wavelengths. (Speed of sound in air is 344 ms^–1)

Q. Infrasonic sound is of frequency

what name is given to a range which has infrasonic,audible range and ultrasonic.example; bats

Q. Which has larger frequency – infrasonic sound or ultrasonic sound?

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