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)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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1) light distribution curve since the given lamp has 23.4 W power and 104 lm/w efficiency factor, answer the following questions.a) how many lumens is the luminous flux of the lamp?b) if the lamp was a smooth sphere, that is, if the light intensity was constant in all directions, would it be a cd? c) if the lamp was a smooth sphere, how many lx would it create from a height of 2 meters directly below it? d) if the lamp was a semi-sphere, how many lx would it create from a height of 2 meters directly below it? (r = 10 cm) e) note that the values in the light distribution curve of the lamp seen in the figure are given as cd/klm (cd / 1000 lm). According to this, how many lx levels will it create from a height of 2 meters directly below the lamp? f) how many LX is the light level that the lamp will create in a plane illuminated at a 30° angle from the same height?
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