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il63 [147K]
3 years ago
7

a surface recieving sound is moved from it original position to a position three times farther away from the source of the sound

. The intensity of the recieved sound thus becomes
Physics
1 answer:
Delicious77 [7]3 years ago
7 0
Sound intensity = 1/(r^2)

That is Sound intensity is indirectly proportional to  the distance. Therefore, sound becomes 9 times less intense.
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