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

Options

  1. AThe refracted light will be completely polarised.
  2. BBoth the reflected and refracted light will be completely polarised.
  3. CThe reflected light will be completely polarised but the refracted light will be partially polarised.
  4. DThe reflected light will be partially polarised.

Correct answer

C. The reflected light will be completely polarised but the refracted light will be partially polarised.

Step-by-step solution

According to Brewster's law, reflected rays are completely polarized and refracted rays are partially polarized.

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