Question

the speed of sound in air is 320ms^-1 and in water it is 1600ms^-1 it takes 2.5sec for souns to reach a certain distance from the source placed in air

Find Distance

And

How Much Time Will It Take For Sound to travel the same distance when the source in water​

Answer 1

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1) Distance traveled by the sound in air is 800 m.

2) Time taken by the sound to travel 800 m is water is 0.5 s

Explanation:

Speed of sound is air = 320 m/s

Time taken by the sound wave in air = 2.5 seconds

$Speed=\frac{Distance}{time}$

1) Distance traveled by the sound in air:

$Distance=320 m/s\times 2.5 s=800 m$

2) Speed of sound in water = 1600 m/s

Distance traveled by the sound is water =- 800 m (given)

$Time=\frac{Distance}{Speed}=\frac{800 m}{1600 m/s}=0.5 s$

Time taken by the sound to travel 800 m is water is 0.5 s