Optics Question 303
Question: The oscillating electric and magnetic vectors of an electromagnetic wave are oriented along
[CBSE PMT 1994]
Options:
A) The same direction but differ in phase by 90°
B) The same direction and are in phase
C) Mutually perpendicular directions and are in phase
D) Mutually perpendicular directions and differ in phase by 90°
Show Answer
Answer:
Correct Answer: C
Solution:
$ \vec{E} $ and $ \vec{B} $ are mutually perpendicular to each other and are in phase i.e. they become zero and minimum at the same place and at the same time.
