The flash of a gun is seen by a man 3 seconds before the sound is heard. Calculate the distance of the gun from the man (Speed of sound in air is 332 m/s).

Since the speed of lght is 3*10⁸, for all the purpose, the flash is seen at the same time that the gun is fired.

So we know that formula of speed= distance/time;

So, distance= speed*time (i)

Sped of sound in air is 332 m/s (given) and time= 3s.

Subustituing the value in equation (i) we get

(D)= 332 m/s*3s

We get D= 996 m.