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An unpolarized light beam travelling in air is incident on a medium of refractive index at Brewster's angle. Then:

  1. A
    reflected light is completely polarized and the angle of reflection is close to
  2. B
    reflected light is partially polarized and the angle of reflection is close to
  3. C
    both reflected and transmitted light are perfectly polarized with angles of reflection and refraction close to and , respectively.
  4. D
    transmitted light is completely polarized with angle of refraction close to

Solution & Step-by-step Explanation

1. Brewster's Law:
At Brewster's angle (), the reflected light is completely plane-polarized...2. Angles:
Angle of reflection .
At Brewster's angle, the reflected and refracted rays are perpendicular:.3. Polarization:
Only the reflected light is completely polarized. The transmitted light is partially polarized.

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An unpolarized light beam travelling in air is incident on a medium of refractive index at Brewster's angle. Then:
A
reflected light is completely polarized and the angle of reflection is close to
B
reflected light is partially polarized and the angle of reflection is close to
C
both reflected and transmitted light are perfectly polarized with angles of reflection and refraction close to and , respectively.
D
transmitted light is completely polarized with angle of refraction close to

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Wave OpticsPolarizationBrewster's Law

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