149 For a parallel beam of monochromatic light of wavelength A diffraction is produced by a single slit whose width a is of the

Question

149 For a parallel beam of monochromatic light of wavelength A diffraction is produced by a single slit whose width a is of the wavelength of the light If D is the distance of the screen from the slit the width of the central maxima will be 2015 a c D a 2Da b d Da a 2D a

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