Physics-
General
Easy

Question

If the air curtain of thickness 't' is made in the water The shift produced by the air curtain is

  1. t open parentheses 1 minus fraction numerator 1 over denominator mu end fraction close parentheses in the direction of incident rays    
  2. t open parentheses 1 minus fraction numerator 1 over denominator mu end fraction close parentheses in the direction opposite to incident rays    
  3. t(1- mu ) in the direction of incident rays    
  4. t(1- mu ) in the direction opposite to incident rays    

The correct answer is: t open parentheses 1 minus fraction numerator 1 over denominator mu end fraction close parentheses in the direction opposite to incident rays

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