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Manipal MET2010PhysicsRay Optics

The angle of minimum deviation _m for an equilateral glass prism is 30^ . Refractive index of the prism is

Options

  1. A1 / 2
  2. B2
  3. C2 2
  4. D1 / 2 2

Correct answer

B. 2

Step-by-step solution

A=60^ , _m=30^ As = ( A+ _m 2 ) ( A 2 ) = (60^ +30^ ) 2 ( 60^ 2 ) = 45^ 30^ = 1 / 2 1 / 2 = 2 2 = 2

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