What do we mean when we say that two light rays striking a screen are in phase with each other?
A)When the electric field due to one is a maximum,the electric field due to the other is also a maximum,and this relation is maintained as time passes.
B)They are traveling at the same speed.
C)They have the same wavelength.
D)They alternately reinforce and cancel each other.

Question

Quizplus · Accepted Answer

When we say that two light rays striking a screen are in phase with each other, it means that the electric field due to one is a maximum when the electric field due to the other is also a maximum, and this relationship is maintained as time passes. This results in a constructive interference pattern.

What Do We Mean When We Say That Two Light