Physics-
General
Easy

Question

A given ray of light suffers minimum deviation in an equileteral prism ‘P’. Additional prisms Q and R of identical shape and of the same material as ‘P’ are now added. The ray will now suffer

  1. greater deviation    
  2. no deviation    
  3. same deviation as before    
  4. total internal reflection    

The correct answer is: same deviation as before

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