Question

a person needs a lens of poor - 5.5 dioptres for correcting his distant vision. for correcting his near vision he needs a lens of power +1.5 dioptres. what is the focal length of the lens required for correcting. distant. vision, and. near vision ?​

Answer 1

Answer:

focal length of distant vision=5.5 m

focal length of near vision= -1.5 m

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