Question

a boy's 60 m in front of a wall and claps the boy continuous to clap every time and echo is heard another boy. The time taken between the first and fifty First Club is 20 s calculate the speed of sound

Answer 1

The speed of sound will be 300 m/s

Explanation :

Distance between the boy's hand and wall = 60 m

Time between 1st and 51st clap's echo = 20 sec

Total echo between 1st and 51st clap = 51 - 1 = 50

Hence distance covered by sound = 50 x 60 x 2

= 6000

Hence speed = distance by time

=> s = 6000/20 = 300 m/s

Hence speed of sound will be 300 m/s