A Diffraction Grating Has 6000 Lines Per Centimeter Ruled on It

question 52

Multiple Choice

A diffraction grating has 6000 lines per centimeter ruled on it. What is the angular separation between the second and the third orders on the same side of the central order when the grating is illuminated with a beam of light of wavelength 550 nm?

• A)12.3°
• B)20.5°
• C)30.5°
• D)40.5°
• E)50.5°

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