NEET 2015 Physics question
For a parallel beam of monochromatic light of wavelength '', diffraction is produced by a single slit whose width 'a' is of the order 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 :
Answer: (4)
Solution
The first minima of a single-slit pattern occur at , i.e. on either side of the axis. The central maximum extends between the two first
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