Question

what is echo??And what are the conditions for an echo to occur??​

Answer 1

The conditions necessary for hearing the echo:

The human ear can not distinguish between two successive sounds if the period between them is less than 0.1 second , Wide and big reflecting surface must be presented to hear the echo such as the walls , the mountains or the water bodies .

Answer 2

Explanation:

Question:-

What is echo ? What are the conditions necessary for an echo to occur ?

Answer:-

First Answer:-

Echo is the reflection of sound waves after the original sound has been emitted. Echo is usually the imitation of the voice that is outspoken by the speaker (any living organism) and is reflected back to the speaker from different dimensions which makes us listen a word many times.

Second Answer:-

In order for echo to happen,the following conditions are necessary:-

• The distance is a must condition for an echo to happen. The speaker and the distance between the sound must be around 16 metres for an echo to happen.

• The echo can only be done if a barrier is present between the speaker and the sound,for the sound to reflect back and we can hear it as echo.

• The reflection of the sound must be quick enough to let us hear after 0.1 seconds after the original sound has been heard.

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