Physics-
General
Easy

Question

A person can see clearly only upto 3m. What will be power of his spectacles lens, so that he can see clearly upto 12 m

  1. 0.25 D    
  2. –0.25 D    
  3. 0.5 D    
  4. –0.5 D    

The correct answer is: –0.25 D

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