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Light from Two Sources λ\lambda 1 = 623 Nm And λ\lambda 2 = 488 Nm, Is Incident on a Diffraction Grating

Question 6

Multiple Choice

Light from two sources, λ\lambda 1 = 623 nm and λ\lambda 2 = 488 nm, is incident on a diffraction grating that has 5550 lines/cm. What is the angular separation, θ\theta 1 - θ\theta 2, of the second order maxima of the two waves?


A) 11.0°
B) 15.0°
C) 25.0°
D) 32.8°
E) 43.8°

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