Question

On a rainy day the normal speed of sound was 330 m/s. when the rain stop the

temperature of surrounding rises by 10 degree celsius. A boy rings a bell and an

another boy who is standing at the distance of 336.1 m. find the time in which the

another boy will hears the sound of the bell.
​

Answer 1

Explanation:

Speed of sound is

v∝

ρ

1

So

v

air

v

H

2

=

ρ

H

2

ρ

air

Now ρ

air

=1.2 gm/lt and ρ

H

2

=0.089 gm/lt.

v

H

2

=330×

0.089

1.2

=1205 m/s