Question

what factors are important to get a distinct echo

Answer 1

$echo$

:-It is defined as repetition of sound due to the reflection of the orignal sound by any hard obstacle .

$factors \: that \: are \: important \: to \: \\ get \: a \: distinct \: echo \: are \: as \: follows$

#Nature of the obstacle

The reflecting surface of the obstacle must be rigid.

#Distance between the source of sound and obstacle

The echo is heard only if the minimum distance between the source of sound and obstacle is 17m.

#Time gap between the orignal sound and reflected sound

We can hear two sounds seprately if the time gap between these two sound is more than 0.1

# Size of obstacle

Echo also depends upon the size of the obstacle.

Answer 2

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