Using a 679 nm wavelength laser, you form the diffraction pattern of a 0.101 mm wide slit on a screen. You measure on the screen that the 14thark fringe is 8.11 cmaway from the center of the central maximum. How far is the screen located from the slit?
Solution)
For Dark Fringe, we have
L=aY/m*lambda
L=0.0811 m*(0.101*10^-3 m)/14*(679*10^-9 m)
L=0.8616 m
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