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NEET2010PhysicsRay OpticsActual

A ray of light is incident on a 60^ prism at the minimum deviation position. The angle of refraction at the first face (ie, incident face) of the prism is

Options

  1. Azero
  2. B30^
  3. C45^
  4. D60^

Correct answer

B. 30^

Step-by-step solution

The refracting angle of prism A=r₁+ r ₂ For minimum deviation array l r ₁ = r ₂= r A =2 r or r = A 2 = 60^ 2 =30^ array

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