Asked by Luke
5. A grating with 400 lines per mm is illuminated with light of wavelength 600.0 nm.
(a) Determine the angle at which the maxima are observed
(b) Determine the largest order (n) that can be seen with this grating and this wavelength.
(a) Determine the angle at which the maxima are observed
(b) Determine the largest order (n) that can be seen with this grating and this wavelength.
Answers
Answered by
Chanz
sinθ = lambda/d
so θ =sin-1(lambda/d)
You'll have to figure out d given there are 400 lines in one mm (so how far apart are the lines?)
so θ =sin-1(lambda/d)
You'll have to figure out d given there are 400 lines in one mm (so how far apart are the lines?)
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