Question

Tarun diary entry After meeting Ram narayan

Answer 1

Answer:

At a prayer meeting, the disciples sing JAI-RAM JAI-RAM. The sound amplified by a loudspeaker comes back after reflection from a building at a distance of 80 m from the meeting. What maximum time interval can be kept between one JAI-RAM and the next JAI-RAM so that the echo S eed of does not disturb a listener sitting in the meeting. p sound in air is `320 m s^-1`.

Explanation:

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