# Anne is farsighted; the nearest object she can see clearly without corrective lenses is 2.0 m away. It is 1.8 cm from the lens of her eye to the retina. (a) Sketch a ray diagram to show (qualitatively) what happens when she tries to look at something closer than 2.0 m without corrective lenses. (b) What should the focal length

Anne is farsighted; the nearest object she can see clearly without corrective lenses is 2.0 m away. It is 1.8 cm from the lens of her eye to the retina.

(a) Sketch a ray diagram to show (qualitatively) what happens when she tries to look at something closer than 2.0 m without corrective lenses.

(b) What should the focal length of her contact lenses be so that she can see clearly objects as close as 20.0 cm from her eye?

(a) Sketch a ray diagram to show (qualitatively) what happens when she tries to look at something closer than 2.0 m without corrective lenses.

(b) What should the focal length of her contact lenses be so that she can see clearly objects as close as 20.0 cm from her eye?

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**Related Book For**

## Physics

2nd edition

**Authors:** Alan Giambattista, Betty Richardson, Robert Richardson

**ISBN:** 978-0077339685