Question 9 Three discrete spectral lines occur at angles of 10.2°, 14.2°, and 14.3° in the first-order spectrum of a grating spectrometer. (Assume that the light is incident normally on the gratings.) (a) If the grating has 3 690 slits/cm, what are the wavelengths of the light, in nanometer (nm)? (give your answers from smallest to largest wavelength.) At what angles, in degrees, are these lines found in the second-order spectrum? Give your answers from smallest to largest angle.) (b)

Question 9 Three discrete spectral lines occur at angles of 10.2°, 14.2°, and 14.3° in the first-order spectrum of a grating spectrometer. (Assume that the light is incident normally on the gratings.) (a) If the grating has 3 690 slits/cm, what are the wavelengths of the light, in nanometer (nm)? (give your answers from smallest to largest wavelength.) At what angles, in degrees, are these lines found in the second-order spectrum? Give your answers from smallest to largest angle.) (b)

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter4: Diffraction

Section: Chapter Questions

Problem 46P: An electric current through hydrogen gas produces several distinct wavelengths of visible light....

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