Question

6. The speed of sound in air is 330 ms and in
water is 1650 m s-1. It takes 2 s for sound to reach
a certain distance from the source placed in air.
(a) Find the distance. (b) How much time will it
take for sound to reach the same distance when
the source is in water ?​

Answer 1

Explanation:

a) 330*2 that is 660

b) it will be 660/1650 seconds.. that is 0.4 sec

Answer 2

a)Distance= 660m/s

b)Time = 0.4 s

Given:

V(air) = 330 m/s ,V(water) = 1650m/s and t = 2s.

To Find:

a) The distance

b) Time taken for sound to reach

Solution:

a) We know that,

Distance = speed(air) * time

= 330 * 2

= 660 m/s

b) Time = Distance / Speed(water)

= 660/1650

=0.4 s

#SPJ3

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