In a Young's Double-Slit Experiment, a Thin Sheet of Mica

question 17

Multiple Choice

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 by an amount corresponding to 30 dark bands. 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) 0.090 mm
• B) 0.012 mm
• C) 0.014 mm
• D) 0.024 mm
• E) 0.062 mm

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