Sounds of frequencies below 20000 Hz are called ultrasonic sound.

True

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False

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Solution

The correct option is B False
Sounds of frequencies above 20000 Hz are called ultrasonic sound.

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Similar questions

Sound is travelling in air at a speed of 343 m/s. The wavelength of the sound wave is 0.1 cm. Humans can easily perceive this sound.

True or false?

(a) Frequency increases if amplitude is increased.

(b) A bat uses the principle of the radar system while flying at night.

Sounds having frequencies lower than 20 Hz are called:

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