NEET 2024, Physics Q5: Refraction at Plane and Spherical surfaces
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Q.
An unpolarised light beam strikes a glass surface at Brewster's angle. Then
- A
both the reflected and refracted light will be completely polarised
- B
the reflected light will be completely polarised but the refracted light will be partially polarised
- C
the reflected light will be partially polarised
- D
the refracted light will be completely polarised
Solution
At Brewster's angle, the reflected ray is completely polarised perpendicular to the plane of incidence (its component parallel to the plane of incidence vanishes).
The refracted ray, however, still contains both polarisation components and is only partially polarised.
Concept behind this question
Refraction at Plane and Spherical surfacesNotes, formulas and examples →More previous year questions on Refraction at Plane and Spherical surfaces
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