A boy standing in front of wall at a distance of `85 m` produces `2` claps per second. He notices that the sound of his clapping coincides with the echo. The echo is heard only once when clapping is stopped. Calcualte the speed of sound.

A boy standing in front of a wall at a distance of 85 m produces 2 claps per second. He notices that the sound of his clapping coincides with the echo. The echo is heard only once when clapping is stopped. Calculate the speed of sound.

A boy stands 60 m in front of a tall wall and claps. The boy continues to clap every time an echo is heard. Another boy dindds that the time between the first(1 st) and the fifty first (51 st) clap is 18 s . Calculate the speed of sound.

A boy stands 60 m in front of a tall wall and claps. The boy continues to clap every time an echo is heard. Another boy finds that the time taken between the first and fifty-first clap is 18 s. Calculate the speed of sound.

A girl stands 170 m away from a high wall and claps her hands at a steady rate so each clap coincides with echo of the one before. (I) If she claps 60 claps in 1 min what value should be the speed of sound in air ?

In an experiment to determine the speed of sound, a student stands 150 m from a wall and claps. When he claps once, what is the time interval between the sound of the clap and its echo heard by the student, in terms of v, the speed of sound?