Question

In a Young's double-slit experiment, a thin sheet of mica is placed over one of the two slits. As a result, the center of the fringe pattern (on the screen) shifts so that the center is now occupied by what was the30thdark band. The wavelength of the light in this experiment is 480 nm and the index of the mica is 1.60. The mica thickness is:
A) 0.009 mm
B) 0.012 mm
C) 0.014 mm
D) 0.024 mm
E) 0.062 mm

Answer

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