Two narrow slits in a thin metal sheet are 2.70 mm apart center-to-center. When illuminated directly by plane waves (in air) a fringe pattern appears on a screen 4.60 m away. It is found that measuring from the center of any one dark fringe to the center of the minimum five dark fringes away is a distance of 5.00 mm. Determine the illuminating wavelength.

Two narrow slits in a thin metal sheet are 2.70 mm apart center-to-center. When illuminated directly by plane waves (in air) a fringe pattern appears on a screen 4.60 m away. It is found that measuring from the center of any one dark fringe to the center of the minimum five dark fringes away is a distance of 5.00 mm. Determine the illuminating wavelength.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter4: Diffraction

Section: Chapter Questions

Problem 90AP: A monochromatic light of unknown wavelength is incident on a slit of width 20 m. A diffraction...

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