A Double-Slit Experiment Uses Coherent Light of Wavelength 633 Nm

question 20

Essay

A double-slit experiment uses coherent light of wavelength 633 nm with a slit separation
of 0.100 mm and a screen placed 2.0 m away.
(a) How wide on the screen is the central bright fringe?
(b) What is the distance on the screen between first-order and second-order bright
fringes?
(c) What is the angular separation (in radians) between the central maximum and the
first-order maximum?

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