A Multiple-Slit Diffraction Grating Has a Slit Separation of 1

question 3

Multiple Choice

A multiple-slit diffraction grating has a slit separation of 1.75 × 10−⁶ m.Find the wavelength of the monochromatic light that will have its second-order bright fringe diffracted through an angle of 36.0°.(1 nm = 10−⁹ m)

• A)389 nm
• B)868 nm
• C)514 nm
• D)343 nm
• E)257 nm

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