A diffraction grating having 180 lines/mm is illuminated with a light signal containing only two wavelengths, 1
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A diffraction grating having 180 lines/mm is illuminated with a light signal containing only two wavelengths, λ1 = 400 nm and λ2 = 500 nm. The signal is incident perpendicularly on the grating.
(a) What is the angular separation between the second-order maxima of these two wavelengths?
(b) What is the smallest angle at which two of the resulting maxima are superimposed?
(c) What is the highest order for which maxima for both wavelengths are present in the diffraction pattern?
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Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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