A person standing at a diatance of 55 m from a wall . if the speed of sound is 330 m/sec , find the time for an echo tobe heard
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As we know, time = distance travelled / speed
Here distance will be 110m since the sound would go n return ,
55 + 55 = 110
t = d/s = 110/330 = 1/3 = 0.33 secs
Here distance will be 110m since the sound would go n return ,
55 + 55 = 110
t = d/s = 110/330 = 1/3 = 0.33 secs
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