Question

What should be the minimum distance between a sound source and reflector for a distinct echo?

Answer 1

The minimum distance between a sound source and reflector for a distinct echo?

Explanation:

• The time period of sound persistence for simple sound is 0.1s.
• To listen the sound of echo the time taken is 0.1 s.
• Let suppose d will be the distance, t is time
• Sound travel total time taken is 2d.
• 2d = vt
• = d = vt/2
• Now to put the vale of v = 340m/s and t = 0.1 s
• N ow we will get
• d = 17 m
• There fore the distance between reflector from the source is 17m

Learn more: Sound, time period, second

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