Physics, asked by jaivardini, 9 months ago

Doctor advised to use 2Dlens. what is the focal length of lens . and plz say that it is plus or minus

Answers

Answered by hdthebest95

1

Hola mate here is your answer!

Solution:

If you have short sightedness then lens is Convex and Focal length is positive

If you have long sightedness then lens is Concave and Focal length is Negative

Hope it helps!

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