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?
(a) 1.3 cm (b) 1.3 cm (c) 6.33 mrad
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