Question: A grating with 1 500 slits per centimeter is illuminated with light of wavelength 500 nm. (a) What is the highest-order number that can be

A grating with 1 500 slits per centimeter is illuminated with light of wavelength 500 nm.
(a) What is the highest-order number that can be observed with this grating?
(b) Repeat for a grating of 15 000 slits per centimeter.

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