if you are blindfolded in a room how can you find out whether room is occupied or black by producing sound brainly nd
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Answered by
11
Answer:
By producing the sound if you hear your sound again and again then the room is empty and if you did not hear your voice again then the room is filled.
Answered by
4
Answer:
When room is empty the sound reaches you back by bouncing off the wall and when the room is filled then the sound doesn't reach you back as it gets deflected.
Explanation:
when room is empty but small than we can't find it empty or filled. to hear an echo the distance between you and wall of room is to be at least equal to the product of speed of sound in the medium and time taken by sound to reach the wall and come back.
Divide the product of speed of sound and time taken by 2 . Then you will get the minimum distance between you and wall to hear an echo
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