Science, asked by ppdnewsline, 11 months ago

calculate the minimum distance(between the source and reflector required to hear an echo of the sound produced by a girl.(given that speed of sound in air is 340m/s).

Answers

Answered by bhavyatyagi1212

1

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Answered by vicky8764

6

Answer:

speed of sound in air = 340 m/s

minimum time between the sound and the reflected sound = 0.1 sec

distance travelled by sound = 2d

therefore minimum distance between source and reflector = 2d= 340*0.1

= d= 34/2

d = 17 m

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