Monochromatic Light Is Normally Incident on a Diffraction Grating That $\degree$

question 58

Multiple Choice

Monochromatic light is normally incident on a diffraction grating that is 1 cm wide and has 10,000 slits. The first order line is deviated at a 30 $\degree$ angle. What is the wavelength, in nm, of the incident light?

• A) 300
• B) 400
• C) 500
• D) 600
• E) 1000

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