Physics relativity 7

Physics
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In a Young's double slit experiment, the separation between the slits is 1.20 × 10–4 m; and the screen is located 3.50 m from the slits. The distance between the central bright fringe and the second-order bright fringe is 0.0375 m. What is the wavelength of the light used in this experiment?

Jul 10th, 2015

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d*sin theta = m*lambda

lambda = d/2 *sintheta = d/2 *0.0375/3.5 = 6x10^-5*0.0375/3.5 =  6.43 x10^-7 m 

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Jul 10th, 2015

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