Physics, asked by Sree9550, 11 months ago

Ques:-A person needs a lens of power -5.5 dioptres for correcting his distant vision. For correcting his near vision he needs a lens of power +1.5 dioptre. What is the focal length of the lens required for correcting distant vision?

Answers

Answered by rohan3047
1

first of the power is

-5.5D

so,

1/f=p

1/p=f ( in cm)

100/-5.5 =f

f=-18.18 cm

If the power is +1.5 Dioptre

100/1.5=f

f=66.66 cm

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