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Q.

Is it true that we can’t hear an echo in a small room?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
Yes, we can’t hear the echo in a small room. This is because the echo occurs when the distance between the reflecting surface and the source is more than 50 feet. And the echo is the sound wave reflected from the smooth reflecting surface. There are various types of echoes, and both a person and an object can produce an echo that sounds exactly like the original sound.
 
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