A 17-Mm-Wide Diffraction Grating Has Rulings of 530 Lines Per

question 57

Multiple Choice

A 17-mm-wide diffraction grating has rulings of 530 lines per millimeter.White light is incident normally on the grating.What is the longest wavelength that forms an intensity maximum in the fifth order?

• A)377 nm
• B)352 nm
• C)402 nm
• D)427 nm
• E)452 nm

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