Page 1 - mind map - power of a lens
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Power of a lens








                                 converge or diverge
                                    the ray of light





                                                  Power of a convex             Power of lens is 1
                   reciprocal of focal           lens is positive and
                   length of the lens          that of a concave lens           diopter if its focal
                                                                                   length is 1 m.
                                                      is negative
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