Aditi clapped her hands near a cliff and heard the echo after 4 seconds. what is the distance of cliff from her if the speed of sound is taken as 346ms-1

Given

Speed of sound (u)=346 m/s

Time taken for hearing the echo (t)=4s

Now

speed=

time

distance

⇒346=

4

distance

⇒distance =(346×4)=1384.

Total distance covered by sound is 1384 m

In 4 s, sound has to travel twice the distance between the cliff and aditi.

Therefore, the distance between the cliff and aditi is =

2

1384

 m=692 m

Distance of cliff from aditi =692 m.

Explanation:

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b) returns freshwater to the earth.

c) returns freshwater to the earth.c) occurs after condensation.

d) returns freshwater to the earth.c) occurs after condensation.d) roughly equal to the amount of evaporation.

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