1. A transparent material of thickness 12 mm and index of refraction of 1.3, has an intensity ratio between transmitted light and incident light of 0.75. a) What is the reflectivity, R of the material? b) What is the thickness of the material if the fraction of transmitted light is 0.63?

1. A transparent material of thickness 12 mm and index of refraction of 1.3, has an intensity ratio between transmitted light and incident light of 0.75. a) What is the reflectivity, R of the material? b) What is the thickness of the material if the fraction of transmitted light is 0.63?

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter3: Interference

Section: Chapter Questions

Problem 47P: To save money on making military aircraft invisible to radar, an inventor decides to coat them with...

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Question

1. A transparent material of thickness 12 mm and index of refraction of 1.3, has an intensity ratio between transmitted light and
incident light of
0.75.
a) What is the reflectivity, Rof the material?
b) What is the thickness of the material if the fraction of transmitted light is 0.63?

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