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KVPY2017PhysicsRay Optics

A long horizontal mirror is next to a vertical screen (See figure). Parallel light rays are falling on the mirror at an angle from the vertical. If a vertical object of height h is kept on the mirror at a distance d>h ( ) . The length of the shadow of the object on the screen would be

Options

  1. Ah / 2
  2. Bh ( )
  3. C2 ~h .
  4. D4 ~h

Correct answer

C. 2 ~h .

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