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Monochromatic Light from a He-Ne Laser (λ = 632

Question 13

Multiple Choice

Monochromatic light from a He-Ne laser (λ = 632.8 nm) is incident on a diffraction grating containing 5000 lines/cm. Determine the angle of the first-order maximum.


A) 18.4°
B) 39.2°
C) 14.6°
D) 27.7°
E) 13.9°

Correct Answer:

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