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Q.

Is it true that while shouting at mountains we can easily hear our voice in reverse the reason behind this is that sound can travel at 343 m/s?


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a

True

b

False 

answer is B.

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Detailed Solution

The above statement is False.
While shouting at mountains, we can easily hear our voice in reverse, and it’s not related to the speed of sound. This happens because of the law of reflection of sound waves, and the sound gets bounced back after striking an object. This reflection of sound is called an echo. The minimum distance to get echoes is 17.2 m.
The correct statement would be while shouting at mountains, we can easily hear our voice, but not in reverse.
  
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