Light containing wavelengths in the range 420 nm to 630 nm is incident normally on a…

PHYSICS · Subjective · AP · Physics 2: Algebra-based · Waves Sound and Physical Optics · Waves Sound and Physical Optics

Problem

Light containing wavelengths in the range 420 nm to 630 nm is incident normally on a diffraction grating with 160 lines per mm. What is the smallest angle at which there is overlap between consecutive orders?

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