Nature has equipped animals such as bats and porpoises with a mechanism by which they find their distance from an object using echoes. They emit ultrasonic squeaks which bounce off the surface in front of them and return as echoes. A bat in search of prey hears the echo of its squeak after 0.4 seconds.
What is the frequency range of ultrasonic waves?

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Solution

Bats always emit ultrasonic waves with a very high frequency.
Ultrasonic waves have frequencies greater than 20000 Hz.
They are inaudible to human beings.

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Similar questions

A bat in search of prey hears the echo of its squeak after 0.1 s .How far is the prey from the bat if the squeak got reflected from it?

Bats produce high-pitched ultrasonic squeaks. These high-pitched squeaks are reflected by objects such as preys and return to the bat's ear. This allows a bat to know the distance of his prey.

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. How far is the prey from the bat, if the squeak got reflected from it?

(

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= 340 m/s)

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Bats always emit ultrasonic waves with a very high frequency.Ultrasonic waves have frequencies greater than 20000 Hz.They are inaudible to human beings.

Bats always emit ultrasonic waves with a very high frequency.
Ultrasonic waves have frequencies greater than 20000 Hz.
They are inaudible to human beings.