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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 40 times)

bio_gurl

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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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Answer to Question 1

D

Answer to Question 2

D




bio_gurl

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Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it


adf223

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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