A nonreflective coating (n = 1.41) covers the glass (n = 1.52) of a camera lens. Assuming that the coating prevents reflection of a specific wavelength Avacuum = 514 nm), determine the minimum nonzero thickness that the coating can have.

A nonreflective coating (n = 1.41) covers the glass (n = 1.52) of a camera lens. Assuming that the coating prevents reflection of a specific wavelength Avacuum = 514 nm), determine the minimum nonzero thickness that the coating can have.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter38: Refraction And Images Formed By Refraction

Section: Chapter Questions

Problem 30PQ

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Concept explainers

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.

Question

A nonreflective coating (n = 1.41) covers the glass
(n = 1.52) of a camera lens. Assuming that the
coating prevents reflection of a specific wavelength
Avacuum = 514 nm), determine the minimum nonzero
thickness that the coating can have.
Number i
Units

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