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A man is standing not exactly at the cen...

A man is standing not exactly at the centre of two walls. He fires a gun and hears the first echo after 1 s and the second echo after 2 s. If the speed of the sound is `330 ms^(-1)`, what is the distance between the walls ?

A

330 m

B

360 m

C

420 m

D

495 m

Text Solution

Verified by Experts

The correct Answer is:
D

The distance between the man and the wall A
`= v xx t = 330 xx 1/2 =165 m`
The distance between the man and the wall B
`= 330 xx 2/2 = 330 m`
Distance between the wall.s = 330 + 165 = 495 m
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