A microscope contains two polarizers, one below the stage to polarize the light and another polarizer (the analyzer) between the objective lens and the eyepiece. (a) White light with an intensity of 50 W/m2 is passed through the two polarizers in the microscope. If the analyzer is at an angle of 60° to the first polarizer. What is the intensity of light reaching the eyepiece? (b) The microscope is used to inspect a block of Si (n = 3.5) which is coated with a thin layer (t = 200 nm) of SiO (n = 1.45). What is the longest wavelength of light reflected strongly and thus not transmitted through the sample?
A microscope contains two polarizers, one below the stage to polarize the light and another polarizer (the analyzer) between the objective lens and the eyepiece. (a) White light with an intensity of 50 W/m2 is passed through the two polarizers in the microscope. If the analyzer is at an angle of 60° to the first polarizer. What is the intensity of light reaching the eyepiece? (b) The microscope is used to inspect a block of Si (n = 3.5) which is coated with a thin layer (t = 200 nm) of SiO (n = 1.45). What is the longest wavelength of light reflected strongly and thus not transmitted through the sample?
University Physics Volume 3
17th Edition
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:William Moebs, Jeff Sanny
Chapter1: The Nature Of Light
Section: Chapter Questions
Problem 94CP: If the apex angle in the previous problem is 20.0° and n = 1.50, what is the value of a?
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A microscope contains two polarizers, one below the stage to polarize the light and another polarizer (the analyzer) between the objective lens and the eyepiece.
(a) White light with an intensity of 50 W/m2 is passed through the two polarizers in the microscope. If the analyzer is at an angle of 60° to the first polarizer. What is the intensity of light reaching the eyepiece?
(b) The microscope is used to inspect a block of Si (n = 3.5) which is coated with a thin layer
(t = 200 nm) of SiO (n = 1.45). What is the longest
Transcribed Image Text:Air
n = 1
SiO
n = 1.45
Si
n = 3.50
Transcribed Image Text:Polarization
Analyzer
Extra-
Ordinary
Ray
Plane
Polarized-
Light
Polarizer
Light
From
Source
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