Physics-
General
Easy

Question

The central maximum normally occurs at a spot on the screen midway between the two slits at room temperature. On insertion of the transparent plate –

  1. this spot will still be a maxima    
  2. this spot will now become a minima    
  3. the spot will be neither a minima nor a maxima    
  4. this spot will be either a minima or a maxima    

The correct answer is: the spot will be neither a minima nor a maxima

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