Question

5. A man standing at some distance from a cliff
hears the echo of sound after 2s. He walks
495 m away from the cliff. He produces a sound
there and recieves the echo after 5s. What is
the speed of sound?
1) 330 m/s 2) 340 m/s 3) 390 m/s 4) 380 m/s​

Answer 1

Answer:

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