Two sound waves of equal intensity I produce beats . The maximum intensity of sound produced in beats will be

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Solution

The correct option is B 4I
Given,

Intensity of two sounds is equal i.e. I

Maximum intensity of the beat is given by

$I_{max} = I_{1} + I_{2} + 2 \sqrt{I_{1}} \sqrt{I_{2}}$

$\Rightarrow I_{max} = I + I + 2 I$

$\Rightarrow I_{max} = 4 I$

hence, the maximum intensity of the beat is 4I

correct answer (B)

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Two sound waves of equal intensity I produce beats . The maximum intensity of sound produced in beats will be

The correct option is B 4IGiven, Intensity of two sounds is equal i.e. I Maximum intensity of the beat is given by Imax=I1+I2+2√I1√I2 ⇒Imax=I+I+2I ⇒Imax=4I hence, the maximum intensity of the beat is 4I correct answer (B)