Visible Light of Wavelength 589 Nm Is Incident on a Diffraction

question 39

Multiple Choice

Visible light of wavelength 589 nm is incident on a diffraction grating that has 3500 lines/cm. At what angle with respect to the central maximum is the fifth order maximum observed?

• A)17.9°
• B)23.8°
• C)35.7°
• D)71.3°
• E)A fifth order maximum cannot be observed.

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