Question

A myopic person is using spectacles of power -1.5D for distinct vision .how far can he see distinctly with out specr​

Answer 1

Answer:

minus sign signifies that the lens is convex lens

power = -1.5 D

focal length=?

power = 1/ focal length

focal length = 1/power

focal length = 1/1.5

focal length = 0.67 meter

Explanation:

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