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When the angle of incidence on a transparent material is 60 ° , the reflected light is completely polarised. The velocity of refracted ray inside the material is

Options

  1. A3 × 1 0 8 m/s
  2. B3 × 1 0 8 m/s
  3. C3 2 × 1 0 8 m/s
  4. D1 3 × 1 0 8 m/s

Correct answer

B. 3 × 1 0 8 m/s

Step-by-step solution

μ = tan i p ∴ c v = tan i p ∴ v = 3 × 10 8 3 = 3 × 10 8 m / s

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