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KVPY2013PhysicsRay Optics

A horizontal parallel beam of light passes through a vertical convex lens of focal length 20 ~cm and is then reflected by a tilted plane mirror so that it converges to a point I . The distance PI is 10 ~cm . M is a point at which the axis of the lens intersects the mirror. The distance PM is 10 ~cm . The angle which the mirror makes with the horizontal is

Options

  1. A15^
  2. B30^
  3. C45^
  4. D60^

Correct answer

D. 60^

Step-by-step solution

60^

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