White light is spread out into spectral hues by a diffraction grating. If the grating has 1000 lines per cm, at what angle will red light (λ = 640 nm) appear in first order?
A) 14.7°
B) 7.35°
C) 17.7°
D) 3.67°
E) 1.84°

Name: White light is spread out into spectral hues by a diffraction grating. If the grating has 1000 lines per cm, at what angle will red light (λ = 640 nm) appear in first order? A) 14.7° B) 7.35° C) 17.7° D) 3.67° E) 1.84°
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Question

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The Answer is D

White Light Is Spread Out into Spectral Hues by a Diffraction