Two coherent narrow slits emitting ofwavelength λ in the samephase are placed parallel to each other at a small separation of22. the sound is detected by moving a detector on the screen Sat a distance D (s> ) from the slit S, as shown in figure-6.31Find the distance r such that the intensity at P is equal to theintensity at OP TFigure 6.31

Two coherent narrow slits emitting ofwavelength λ in the samephase ar

1.	Two coherent narrow slits emitting ofwavelength λ in the samephase are placed parallel to each other at a small separation of22. the sound is detected by moving a detector on the screen Sat a distance D (s> ) from the slit S, as shown in figure-6.31Find the distance r such that the intensity at P is equal to theintensity at OP TFigure 6.31
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