a man claps 150 m away from a huge wall , he claps again as he hears the echo of the previous clap, another person records the time and stops the stopwatch exactly on the 11th clap. the stopwatch shows time of 10seconds . What is speed of sound?
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Total distance sound traveled = 150+150 = 300 meter
Time taken = 10 second's
Speed of sound = 300/10 = 30 m/s
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