Double-slit interference: In a double-slit experiment, if the slit separation is increased, which of the following happens to the interference pattern shown on the screen?
A) The minima get closer together.
B) The maxima stay at the same position.
C) The minima and maxima stay at the same position.
D) The minima stay at the same position.
E) The maxima get further apart.

Question

Quizplus · Accepted Answer

Increasing the slit separation in a double-slit experiment causes the interference pattern to become more closely spaced, meaning the minima (dark fringes) get closer together. This is because the fringe width is inversely proportional to the slit separation.

Double-Slit Interference: in a Double-Slit Experiment, If the Slit Separation