In an experiment of single slit diffraction pattern, first minimum for red light coincides with first maximum of some other unknown wavelength (λ) ( λred=6600A0) then find λ in A0

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answer is D.

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Detailed Solution

Position of first minima λd and position for first maxima is 3λ2dgiven condition λredd= 3λ2d; λ=23λred

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