Physics
General
Easy

Question

A beam of light is converging towards a point I on a screen. A plane parallel plate of glass whose thickness is in the direction of beam =t, refractive index=n is introduced in the path of the beam. The convergence point is shifted by .........

  1. t open parentheses 1 plus 1 over n close parentheses nearer.
  2. t open parentheses 1 minus 1 over n close parentheses nearer.
  3. t open parentheses 1 plus 1 over straight n close parentheses a way
  4. t open parentheses 1 minus 1 over n close parentheses a way

The correct answer is: t open parentheses 1 minus 1 over n close parentheses nearer.

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