A single slit is opened in an opaque barrier.Light is shone through the slit and the diffraction pattern is observed.If the slit is decreased in size to half its original size,by what factor does the width of the central diffraction maximum change?
A) decreases by a factor four
B) Doubles
C) Halves
D) Increases four times

Question

Quizplus · Accepted Answer

The width of the central diffraction maximum is inversely proportional to the slit width. If the slit width is halved, the width of the central maximum doubles.

A Single Slit Is Opened in an Opaque Barrier