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April 25, 2014

Homework Help: Physics

Posted by Flux on Tuesday, October 23, 2012 at 11:46am.

In an experiment conducted using the Young's double-slit apparatus, the separation between the slits is 20 m. A first-order constructive interference fringe appears at an angle of 2.5o from the zeroth order (central) fringe.

A. What wavelength of light is used in the experiment?
B. At what angle would the fourth-order (m = 4) bright fringe appear?
C. At what angle would the fourth-order (m=4) dark fringe appear?

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