A nearsighted person wears contact lenses of refractive power -6.0 D. What is her far point?...

Question

Question

A nearsighted person wears contact lenses of refractive power -6.0 D. What is her far point?

17 cm

6.0 cm

-17 cm

-4.0 cm

-6.0 cm

Answer 1

Answer #1

focal length of the lens, f = -(1/P) = -(1/(-6)) m = (100/6) cm = 16.67 cm =17 cm (approx)

The far point of the person is 17.0 cm

Option (i) is the correct choice.

Answer 2

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