Coherent light of a single frequency passes through a double slit with a separation d, to produce a pattern on a screen a distance D from the slits. What would cause the separation between adjacent minima on the screen to increase?
A) increase the index of refraction of the medium in which the setup is immersed
B) increase the separation d between the slits
C) increase the distance D
D) increase the frequency of the incident light

Question

Quizplus · Accepted Answer

Increasing the distance D between the slits and the screen increases the separation between adjacent minima, as the interference pattern spreads out over a larger area.

Coherent Light of a Single Frequency Passes Through a Double