28.  Light shines through a single slit whose width is 5.6 x 10-4 m. A diffraction pattern is formed on a flat screen located 4.0 m away. The distance between the middle of the central bright fringe and the first dark fringe is 3.5 mm. What is the wavelength of the light?

Where m = 1 for first dark fringe.

Solving for q

 

 

 

 

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This page last updated on July 13, 2018