MCQ
The phase difference between incident wave and reflected wave is $180^{\circ}$ when light ray
- ✓Enters into glass from air
- BEnters into air from glass
- CEnters into glass from diamond
- DEnters into water from glass
✓
Answer
Correct option: A.
Enters into glass from air
When light reflect from denser surface phase change of $\pi$ occurs.
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