Red light of wavelength 630 nm passes through two slits and then onto a screen that is 1.2 m from the slits. The center of the 3rd order bright band on the screen is separated from the central maximum by 0.72 cm. (a) Determine the frequency of the light. (b) Determine the slit separation. (c) Determine the angle of the 3rd order bright band.

University Physics Volume 3
17th Edition
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:William Moebs, Jeff Sanny
Chapter4: Diffraction
Section: Chapter Questions
Problem 84AP: Red light (wavelength 632.8 nm in air) from a Helium-Neon laser is incident on a single slit of...
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Red light of wavelength 630 nm passes through two slits and then onto a screen that is 1.2 m from the slits. The center of the 3rd order bright band on the screen is separated from the central maximum by 0.72 cm.

(a) Determine the frequency of the light.

(b) Determine the slit separation.

(c) Determine the angle of the 3rd order bright band.

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