English, asked by lakshman74rao, 7 months ago

two lens of power +6D and-2D are placed in contact. The power of combination will be

Answers

Answered by urproblemsolver

0

Explanation:

+4D

power of combination = +6D + (- 2D )

= +6D - 2D

=. +4D

hope it will help u lot ...

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