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Properties of Ultrasonic Sound

Why are the w...

Question

Why are the waves mentioned by you (ultrasonic waves) are not audible to us?

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Solution

The human ear can hear the sound waves which are ranges from 20Hz to 20,000Hz.
The ultrasonic waves are not audible to us because those waves have a frequency of more than 20,000 Hz.
Thus, ultrasonic waves are not audible to us.

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Similar questions

Name the waves used for sound ranging. State one reason for their use. Why are the waves mentioned by you not audible to us ?

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)

In SONAR we use :

(a) ultrasonic waves

(b) infrasonic waves

(c) radio waves

(d) audible sound waves

Q. The speed of highly penetrating ultrasonic waves is :
(a) lower than those of audible sound waves
(b) higher than those of audible sound waves
(c) much higher than those of audible sound waves
(d) same as those of audible sound waves

Q. (i) Name the waves used for echo depth sounding.
(ii) Give one reason for their use for the above purpose.
(iii) Why are the waves mentioned by you not audible to us?

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