24 In single slit diffraction experiment first minima of red light A1 660 nm coincides with first maxima of other wavelength 2

Question

24 In single slit diffraction experiment first minima of red light A1 660 nm coincides with first maxima of other wavelength 2 What is the value of 1 440 nm 2 470 nm 3 550 nm 4 690 nm Find the ratio of least soparation betwe 5

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