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2. A) Monochromatic light illuminates a single slit of width 1.2 x 10^-2 mm. If the...

2.

A) Monochromatic light illuminates a single slit of width 1.2 x 10^-2 mm. If the first order minimum occurs at 4 degrees, find the angular distances of the second order minimum AND maximum from the centre of the pattern.

B) Red light of wavelength 650nm is beamed at a diffraction grating with 2000 slits per cm. Find the order number of the nodal line occurring at 11.25 degrees.

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