MCQ
When light wave suffers reflection at the interface from air to glass, the change in phase of the reflected wave is equal to
- A$0$
- B$\frac{\pi}{2}$
- ✓$\pi$
- D$2 \pi$
✓
Answer
Correct option: C.
$\pi$
When light is reflected from denser medium, a phase difference of $\pi$ always occurs.
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