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Question
A man is kidnapped, blindfolded and imprisoned in a big room. How could the man tell if he was in : a furnished room
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Solution
In furnished room, echo is very less. Hence, he can conclude that he was in a furnished room.
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RELATED QUESTIONS
The minimum distance between the source and the reflector in air. So that an echo is heard is approximately equal to ______.
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An echo returned in 3s. What is the distance of the reflecting surface from the source given that the speed of sound is 330 ms-1?
