Music is been played in two opposite galleries with certain group of people. In the
first gallery a group of 4 singers were singing and in the second gallery 9 singers
were singing. The two galleries are separated by the distance of 70 m. Where should
a person stand for hearing the same intensity of the singers voice? (Hint: The ratio
of the sound intensity is equal to the square of the ratio of their corresponding
distances) .
pls answer fast friends ... urgent
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