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General
Easy

Question

One side of a glass slab is silvered as shown in figure. A ray of light is incident on the other side at angle of incidence i = 45º. Refractive index of glass is given as 1.5. The deviation of the ray of light from its initial path when it comes out of the slab is

  1. 90º    
  2. 180º    
  3. 120º    
  4. 45º    

The correct answer is: 90º

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