A lens (n = 1.52) is coated with a magnesium fluoride film (n = 1.38). (a) If
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(a) If the coating is to cause destructive interference in reflected light for λ = 560 nm (the peak of the solar spectrum), what should its minimum thickness be?
(b) At what two wavelengths closest to 560 nm does the coating cause constructive interference in reflected light?
(c) Is any visible light reflected? Explain.
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a Light reflects off the top and bottom of the film Since n film n air the ray that reflects from ...View the full answer
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Related Book For
Physics
ISBN: 978-0077339685
2nd edition
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
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