In a stormy day a boy observes a lightening flash which is followed by a thunder 3 sec. later. How would you estimate the distance of the lightening strike from the boy? ( given, velocity of sound ...
Time taken (t) = 3 sec
Velocity of sound (v) = 332 m/s
Distance travelled (d) = ?
We know,
d = v x t = 332 x 3 = 996 m
Hence, the source of thunder is about 996 m far from the boy.