3. A grating with 1500 lines/cm has blue light with a wavelength of 490 nm incident on it. a. You measure a diffraction angle of 12.7° to one of the maxima. Which order bright spot is this? b. How far from the grating should you place a screen in order for the second order minima (dark spot) to occur 6.8 cm from the central maxima?

3. A grating with 1500 lines/cm has blue light with a wavelength of 490 nm incident on it. a. You measure a diffraction angle of 12.7° to one of the maxima. Which order bright spot is this? b. How far from the grating should you place a screen in order for the second order minima (dark spot) to occur 6.8 cm from the central maxima?

College Physics

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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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Parts a&b

3. A grating with 1500 lines/cm has blue light with a wavelength of 490 nm incident on it.
a. You measure a diffraction angle of 12.7° to one of the maxima. Which order bright spot is this?
b. How far from the grating should you place a screen in order for the second order minima (dark
spot) to occur 6.8 cm from the central maxima?
2

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