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There are 10 sound sources each producing intensity I, at a point independently. They are incoherent. Average intensity of sound at that point will be:

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a

I

b

10I

c

100I

d

0

answer is B.

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Detailed Solution

Since the sources are incoherent there will be no sustained interference.Hence at the given point,Average intensity = I0 = I1+I2+I3+...+I10 = 10I

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There are 10 sound sources each producing intensity I, at a point independently. They are incoherent. Average intensity of sound at that point will be: