A spacer is cut from a playing card of thickness 2.88 x 10* m and used to separate one end of two rectangular, optically flat, 3.20 cm long glass plates with n = 1.60, as in the figure below. Laser light at 633 nm shines straight down on the top plate. HINT (a) Count the number of phase reversals for the interfering waves. (b) Calculate the separation (in m) between dark interference bands observed on the top plate.

A spacer is cut from a playing card of thickness 2.88 x 10* m and used to separate one end of two rectangular, optically flat, 3.20 cm long glass plates with n = 1.60, as in the figure below. Laser light at 633 nm shines straight down on the top plate. HINT (a) Count the number of phase reversals for the interfering waves. (b) Calculate the separation (in m) between dark interference bands observed on the top plate.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter4: Diffraction

Section: Chapter Questions

Problem 105AP: As an example of diffraction by apertures of everyday dimensions, consider a doorway of width 1.0 m....

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