A hydrogen discharge tube is used to illuminate a 10,000-line/cm diffraction grating. The grating produces first-order...

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Physics

A hydrogen discharge tube is used to illuminate a 10,000-line/cmdiffraction grating. The grating produces first-order maxima at24.2◦, 25.7◦, 29.1◦, and 41.0◦. a) Calculate the wavelengthcorresponding to each angle. b) Determine the angles for thewavelengths in (a) if they are produced instead by a 5,000 line/cmgrating. (c) Find the location of the second-order maxima for thesewavelengths and new grating. (d) Qualitatively discuss how thegrating’s line density is related to the location and separation ofthe fringes.

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