In a double-slit experiment, two narrow identical parallel slits are cut in an opaque plate, with a separation between the slits of 0.8 mm. The slits are illuminated from the left with a laser and a beam-expander, then interference fringes are observed on a white screen at a distance of 3 m to the right. The spacing between adjacent bright fringes is measured to be 2.37 mm; calculate the wavelength of the laser light.

In a double-slit experiment, two narrow identical parallel slits are cut in an opaque plate, with a separation between the slits of 0.8 mm. The slits are illuminated from the left with a laser and a beam-expander, then interference fringes are observed on a white screen at a distance of 3 m to the right. The spacing between adjacent bright fringes is measured to be 2.37 mm; calculate the wavelength of the laser light.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter35: Diffraction And Interference

Section: Chapter Questions

Problem 82PQ

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