Question

two sound sources of intensity I and 4I are used in an interference experiment. find the intensity at points where the waves from the two sources are superimposed with a phase difference of

(1) zero

(2) π/2

93)π

Joshi sir comment

 

Use the formule I = I1 + I2 + 2 √I1 √I2 cosθ

here θ = 0

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