Rachel has good distant vision but has a touch of presbyopia. Her near point is 0.70 m.

Question

Question

Part A

When she wears +2.0 D reading glasses, what is her near point?

Part B

What is her far point when she wears glasses?

science physics

Answer 1

Answer #1

A)

Using lens formula,

1/f = 1/v - 1/u

2 = - 1/0.7 - 1/u

u = 0.29 m

B)

1/f = 1/v - 1/u

2 = 1/∞ - 1/u

u = 0.5 m

Comment in case any doubt please rate my answer.....

Answer 2

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