Part A Antireflection coatings can be used on the inner surfaces of eyeglasses to reduce the reflection of stray light into the eye, thus reducing eyestrain. A 90-nm-thick coating is applied to the lens. What must be the coating's index of refraction to be most effective at 480 nm? Assume that the coating's index of refraction is less than that of the lens. ? Submit Request Answer Part B If the index of refraction of the coating is 1.38, what thickness should the coating be so as to be most effective at 4 The thinnest possible coating is best.

University Physics Volume 3
17th Edition
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:William Moebs, Jeff Sanny
Chapter3: Interference
Section: Chapter Questions
Problem 12CQ: An inventor notices that a soap bubble is dark at its thinnest and realizes that destructive...
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Part A
Antireflection coatings can be used on the inner
surfaces of eyeglasses to reduce the reflection of
stray light into the eye, thus reducing eyestrain.
A 90-nm-thick coating is applied to the lens. What must be the coating's index of refraction to be most effective at
480 nm? Assume that the coating's index of refraction is less than that of the lens.
Submit
Request Answer
Part B
If the index of refraction of the coating is 1.38, what thickness should the coating be so as to be most effective at 480 nm
The thinnest possible coating is best.
Express your answer in nanometers.
ΑΣφ
t =
nm
Submit
Request Answer
Transcribed Image Text:Part A Antireflection coatings can be used on the inner surfaces of eyeglasses to reduce the reflection of stray light into the eye, thus reducing eyestrain. A 90-nm-thick coating is applied to the lens. What must be the coating's index of refraction to be most effective at 480 nm? Assume that the coating's index of refraction is less than that of the lens. Submit Request Answer Part B If the index of refraction of the coating is 1.38, what thickness should the coating be so as to be most effective at 480 nm The thinnest possible coating is best. Express your answer in nanometers. ΑΣφ t = nm Submit Request Answer
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