Statement of a problem № 11321


Light of wavelength λ passes through a single slit of width W and forms a diffraction pattern on a viewing screen. If this light is then replaced by light of wavelength 2λ, the original diffraction pattern is exactly reproduced if the width of the slit ______. (a) Is changed to 1/4 W (b) Is changed to 1/2 W (c) Is changed to 2W (d) Is changed to 4W (e) Remains the same-no change is necessary

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