Anshuman stands 60m in front of a wall and clapping continuously with constant interval. He finds that the time taken between one and 26th clap is 9 seconds. The speed of sound if the clap and the echo coincide is -
A man stands before a large wall at a distance of 50-0 m and claps his hands at regular intervals. Initially, the interval is large. He gradually reduces the interval and fixes it at a value when the echo of a clap merges with the next clap. If he has to clap 10 times during every 3 seconds, find the velocity of sound in air.