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Physics

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

Sound

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Answer

Ultrasonic waves are used for sound ranging.

Ultrasonic waves can travel undeviated through a long distance and so they are used for sound ranging.

The range of audible sound waves is 20 Hz to 20,000 Hz, whereas ultrasonic waves have a frequency more than 20,000 Hz. Hence, ultrasonic waves are not audible to humans.

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