Question

Why do we not hear the echo if we shout when you are very close to the cliff?

Answer 1

Answer:

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Explanation:

Echoes. An echo is a sound that is repeated because the sound waves are reflected back. Sound waves can bounce off smooth, hard objects in the same way as a rubber ball bounces off the ground. Although the direction of the sound changes, the echo sounds the same as the original sound.

The echo will not be heard because the minimum distance between the source and the reflecting surface should be 17 m.

Answer 2

Answer:

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