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KVPY2017PhysicsRay Optics

A ray of light originates from inside a glass slab and is incident on its inner surface at an angle as shown, In this experiment the location x of the spot where the ray hits the screen is recorded. Which of the following correctly shows the plot of variation of x with the angle ?

Options

  1. AA
  2. BB
  3. CC
  4. DD

Correct answer

A. A

Step-by-step solution

This is case of Total Internal Reflector (90- ) is incident angle. As increases thus incident angle decreaes. Initially Ray will be Reflected at _ C angle will be TIR after words Refraction takes place

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