A parallel beam of monochromatic light ofwavelength 5000Ã…is incident normally on a singlenarrow slit of width0.001 mmThe light is focused by aconvex lens on a screen placed in focal planeThe firstminimum will be formed for the angle of diffractionequal to [1993]

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A parallel beam of monochromatic light ofwavelength 5000Ã…is incident normally on a singlenarrow slit of width0.001 mmThe light is focused by aconvex lens on a screen placed in focal planeThe firstminimum will be formed for the angle of diffractionequal to [1993]