Monochromatic light of wavelength passes through a single slit that is wide

PHYSICS · Subjective · A Level · Physics · Waves · Waves

Problem

Monochromatic light of wavelength 550 nm550\,\text{nm} passes through a single slit that is 0.45 mm0.45\,\text{mm} wide. Calculate the angle, in degrees, to the first diffraction minimum on either side of the central maximum. Give your answer to two significant figures.

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