Light of Wavelength 550 Nm Is Incident on a Diffraction

question 55

Multiple Choice

Light of wavelength 550 nm is incident on a diffraction grating that is 1 cm wide and has 1000 slits.What is the half-width of the m = 1 line?

• A)5.5 x 10^-5 rad
• B)5.5 x 10^-4 rad
• C)5.5 x 10^-3 rad
• D)5.5 x 10^-2 rad
• E)5.5 x 10^-1 rad

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