1. a. If a piece of glass (n = 1.5) is coated with a transparent plastic (n = 2.0), will there be a phase shift in either of the beams reflecting off the interfaces (air/plastic and plastic/glass)? How can you tell, without doing the experiment, whether or not there will be a phase shift in either beam? Be specific about what rays are reflecting off what materials. b. So what thickness or thicknesses give the maximum reflection? What thickness or thicknesses (hint: it's thicknesses) give the minimum reflection? Assume that a light of wavelength 500. nm is used, and you may leave the answer in nm. Yes, this is a choice between equations 35.17 and 35.18, but your answer to part a should be helpful in deciding which set.

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Chapter1: Units, Trigonometry. And Vectors
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1. a. If a piece of glass (n = 1.5) is coated with a transparent plastic (n = 2.0), will there be a
phase shift in either of the beams reflecting off the interfaces (air/plastic and plastic/glass)? How
can you tell, without doing the experiment, whether or not there will be a phase shift in either
beam? Be specific about what rays are reflecting off what materials.
b. So what thickness or thicknesses give the maximum reflection? What thickness or thicknesses
(hint: it's thicknesses) give the minimum reflection? Assume that a light of wavelength 500. nm
is used, and you may leave the answer in nm. Yes, this is a choice between equations 35.17 and
35.18, but your answer to part a should be helpful in deciding which set.
Transcribed Image Text:1. a. If a piece of glass (n = 1.5) is coated with a transparent plastic (n = 2.0), will there be a phase shift in either of the beams reflecting off the interfaces (air/plastic and plastic/glass)? How can you tell, without doing the experiment, whether or not there will be a phase shift in either beam? Be specific about what rays are reflecting off what materials. b. So what thickness or thicknesses give the maximum reflection? What thickness or thicknesses (hint: it's thicknesses) give the minimum reflection? Assume that a light of wavelength 500. nm is used, and you may leave the answer in nm. Yes, this is a choice between equations 35.17 and 35.18, but your answer to part a should be helpful in deciding which set.
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