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CBSE - 2017 Class 10 Physics- Question 16 Solution


  If the image formed by a lens for all positions of an object placed in front of it is always erect and diminished, what is the nature of this lens? Draw a ray diagram to justify your answer. If the numerical value of the power of this lens id 10 D, what is its focal length in teh Cartesian System?

  • Posted on 16/01/2018


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