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KCET2009PhysicsRay Optics

A ray of light is incident on a plane mirror at an angle of 60^ . The angle of deviation produced by the mirror is

Options

  1. A120^
  2. B30^
  3. C60^
  4. D90^

Correct answer

C. 60^

Step-by-step solution

Here, angle of incidence, i=60^ Angle of deviation aligned &=180^ -(i+r) &=180^ -2 i &=180^ -2 60^ =60^ aligned ( As i=r)

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