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Question

Find the intensities I1 and I2 from each speaker at point P separately.

A
I1=29.9μW/m2, I2=8.814μW/m2
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B
I1=19.9μW/m2, I2=8.814μW/m2
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C
I1=32.9μW/m2, I2=8.814μW/m2
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D
I1=24.9μW/m2, I2=8.814μW/m2
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Solution

The correct option is B I1=19.9μW/m2, I2=8.814μW/m2
Here, I=I4πr2
Therefore, I1=11034π(2)2= 19.9μW/m2
I2=11034π(3)2 =8.8106μW/m2
Correct answer is B.

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