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A Diffraction Grating Has 450 Lines Per Millimeter

Question 65

Multiple Choice

A diffraction grating has 450 lines per millimeter.What is the highest order m that contains the entire visible spectrum from 400 nm to 700 nm?

A) m = 2
B) m = 3
C) m = 4
D) m = 5
E) m = 6

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