In a single-slit diffraction experiment,the width of the central maximum is 6.0 mm.The width of the slit is then doubled as is the distance to the screen.What is the resulting width of the central maximum?
A)12 mm
B)6.0 mm
C)24 mm
D)3.0 mm

Question

Quizplus · Accepted Answer

The width of the central maximum is directly proportional to the width of the slit and inversely proportional to the distance to the screen. Doubling the width of the slit will double the width of the central maximum, but also doubling the distance to the screen will reduce the width by a factor of 2. Therefore, the resulting width of the central maximum will be the same as before, which is 6.0 mm.

In a Single-Slit Diffraction Experiment,the Width of the Central Maximum