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AP® Physics 1 & 2

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Moderate

2-Slit Experiment Distance Traveled

APPH12-VBJUQZ

In a certain experiment, monochromatic light shines on a pair of narrowly-spaced parallel slits, and an interference pattern is observed on a screen.

At a location on the screen where light from the two slits travels the exact same distance, a ___ line is observed. At a location on the screen where light from one slit travels one wavelength farther than light from the other slit, a ___ line is observed.

A

bright, dark

B

dark, bright

C

dark, dark

D

bright, bright