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An object is placed at a distance of 20 text end text c m from a thin plano convex lens of focal length 15 text end text c m. The plane surface of lens is now silvered. What is the position of image?

  1. 12 text end text c m to the left of lens system    
  2. 20 text end text c m to the right of lens system    
  3. 12 text end text m to the right of lens system    
  4. 20 text end text c m to the left of lens system    

The correct answer is: 12 text end text c m to the left of lens system

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