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easyMCQNEET (UG) 20242026Physics
1 mark

An unpolarised light beam strikes a glass surface at Brewster's angle. Then:

  1. A
    the reflected light will be partially polarised.
  2. B
    the refracted light will be completely polarised.
  3. C
    both the reflected and refracted light will be completely polarised.
  4. D
    the reflected light will be completely polarised but the refracted light will be partially polarised.

Solution & Step-by-step Explanation

At Brewster's angle ():The reflected light is completely plane-polarised with its electric field vector perpendicular to the plane of incidence.The refracted light is partially polarised.The reflected and refracted rays are perpendicular to each other.

Practice this question

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An unpolarised light beam strikes a glass surface at Brewster's angle. Then:
A
the reflected light will be partially polarised.
B
the refracted light will be completely polarised.
C
both the reflected and refracted light will be completely polarised.
D
the reflected light will be completely polarised but the refracted light will be partially polarised.

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