Echoes are heard when we shout in an empty hall. But when the hall is full of
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Question:
Echoes are heard when we shout in an empty hall. But when the hall is full of people no echoes are heard why?
(A) Echoes are subdued in the noise of people.
(B) Soft Clothes of people absorb sound instead of reflecting it.
(C) Destructive Interference of sounds takes place.
(D) Excessive reverberations takes place
Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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