Optics Question 840
Question: The phase difference between incident wave and reflected wave is $ 180{}^\circ $ when light ray
Options:
A) enters into glass from air
B) enters into air from glass
C) enters into glass from diamond
D) enters into water from glass
Show Answer
Answer:
Correct Answer: A
Solution:
[a] When light reflects from denser surface phase change of $ \pi $ occurs.
