A Diffraction Grating with 4000 Lines/cm Is Illuminated by Light

question 8

Short Answer

A diffraction grating with 4000 lines/cm is illuminated by light from the sun. The solar spectrum is spread out on a white wall across the room. At what angle from the center line does blue light (400 nm) appear? At what angle from the center line does red light (650 nm) appear?

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