A Multiple Slit Diffraction Grating Has a Slit Separation of 2.37

question 68

Multiple Choice

A multiple slit diffraction grating has a slit separation of 2.37 × 10−⁶ m.Find the wavelength of the monochromatic light that will have its second order bright fringe diffracted through an angle of 27.7°.(1 nm = 10−⁹ m)

• A) 358 nm
• B) 644 nm
• C) 551 nm
• D) 367 nm
• E) ​275 nm

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