Physics · Wave Optics
NEET (UG) 2024 — Question 8
An unpolarised light beam strikes a glass surface at Brewster's angle. Then
- Option A:
The reflected light will be partially polarised.
- Option B:
The refracted light will be completely polarised.
- Option C:
Both the reflected and refracted light will be completely polarised.
- Option D:Correct
The reflected light will be completely polarised but the refracted light will be partially polarised.
Answer: D
Step-by-step solution
According to Brewster's law, when unpolarised light is incident at Brewster's angle on a glass surface, the reflected light is completely polarised (with electric field perpendicular to the plane of incidence). The refracted (transmitted) light is partially polarised (with a greater proportion of the parallel component). Hence, the correct statement is that the reflected light is completely polarised but the refracted light is partially polarised.
Answer key and solution verified before publishing.
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- Exam
- NEET (UG) 2024
- Paper
- 2024 paper
- Subject
- Physics
- Chapter
- Wave Optics
- Topic
- Polarization of Light Waves