Physics-
General
Easy

Question

Inthefigureshownifaparallelbeam of white light is incidenton the plane of the slits thenthedistance of thenearestwhite spot on the screen fromis d/A. Find the value of A(assumed <<D,'A<<d]

  1. 3    
  2. 5    
  3. 6    
  4. 4    

The correct answer is: 6


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