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Red light of wavelength 633 nm from a helium-neon laser passes through a slit 0.380 mm wide. The diffraction pattern is

Posted: Sun Jul 10, 2022 11:55 am
by answerhappygod
Red light of wavelength 633 nm from a helium-neon laser passesthrough a slit 0.380 mm wide. The diffraction pattern is observedon a screen 3.50 m away. Define the width of a bright fringe as thedistance between the minima on either side.
a) What is the width of the central bright fringe? Express youranswer in meters.
b) What is the width of the first bright fringe on either sideof the central one? Express your answer in meters.