A pendulum has a frequency of 4 vibrations per second. An observer starts the pendulum and fires a gun simultaneously. He hears the echo from the cliff after 6 vibrations of the pendulum. If the velocity of sound in air is 340 m/s, find the distance between the cliff and the observer.
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Hi! the solution is given in the picture enclosed. Have a good day!
and best of luck for your boards!!
-Srijan
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