Physics, asked by GBabithar549, 11 hours ago

+ 40cm focal length bi-convex lens is recommended to correct the defect of vision of a person. Find the power of lens.

Answers

Answered by BrainEater9000

1

Explanation:

focal length = 40cm = 0.4m

power of lens= 1/f

= 1/0.4

= 2.5 dioptre

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