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Easy

Question

Consider the situation shown in figure. Water (mw = 4/3) is filled in a beaker upto a height of 10 cm. A plane mirror is fixed at a height of 5 cm from the surface of water. Distance of image from the mirror after reflection from the mirror after reflection from it of an object O at the bottom of the beaker is

  1. 15 cm    
  2. 12.5 cm    
  3. 7.5 cm    
  4. 10 cm    

The correct answer is: 12.5 cm

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