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A girl standing infront of a wall at a distance of 90 m produces 2 claps per second she notices that sound

Question

pyaal dedo ♥

A girl standing infront of a wall at a distance of 90 m produces 2 claps per second she notices that sound of his clapping coincides with the echo. The echo is heard only once when clapping is stopped.

Calculate:—

Speed of sound

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Mathematics
3 months
2021-07-24T12:31:59+00:00
2021-07-24T12:31:59+00:00 2 Answers
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## Answers ( )

Answer:360m/s

Step-by-step explanation:In the question, it is given that the distance traveled by sound is 2×90= 180m

as it is a reflected or echo sound. We know that time taken is the inverse of frequency.

Hence, the time taken is calculated as follows.

T= 1/2=0.5seconds

d=vt/2

v=180/0.5

= 360m/s

Answer:## thanks pyala bhoot

Step-by-step explanation:## kya khaya