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Author Question: A silicon monoxide (n = 1.45) film of 108 nm thickness is used to coat a glass camera lens (n = ... (Read 60 times)

bio_gurl

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on: Jul 28, 2018
A silicon monoxide (n = 1.45) film of 108 nm thickness is used to coat a glass camera lens (n = 1.56). What wavelength of light in the visible region (390 to 710 nm) will be most efficiently transmitted by this system? (1 nm = 10-9 m)
 a. 580 nm
  c. 492 nm
  b. 400 nm
  d. 626 nm

Question 2

A surface is coated with a material having index of refraction 1.50 . If light in air has a wavelength of 450 nm and is normally incident on this surface, and it is found through interference effects with this light that the surface is 15 wavelengths thick, which of the following is the thickness of the surface?
 a. 6.8 mm
  c. 3.0 mm
  b. 1.5 mm
  d. 4.5 mm


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wergv

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Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

D


bio_gurl

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Reply 2 on: Jul 28, 2018
:D TYSM

adf223

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Reply 3 on: Yesterday
Wow, this really help

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