Monochromatic Light from a He-Ne Laser $\lambda$ = 6328 Nm)is Incident on a Diffraction Grating Containing 5 000

question 8

Multiple Choice

Monochromatic light from a He-Ne laser ( $\lambda$ = 632.8 nm) is incident on a diffraction grating containing 5 000 lines/cm.Determine the angle of the first-order maximum.

• A)18.4\(\degree\)
• B)39.2\(\degree\)
• C)14.6\(\degree\)
• D)27.7\(\degree\)
• E)13.9\(\degree\)

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