A patient can\'t see objects closer than 33.5 cm and wishes to clearly see objec

Question

A patient can't see objects closer than 33.5 cm and wishes to clearly see objects that are 20.7 cm from his eye.

(a) Is the patient nearsighted or farsighted?

(b) If the eye-lens distance is 2.09 cm, what is the minimum object distance p from the lens?=_____ cm

(c) What image position with respect to the lens will allow the patient to see the object?=______ cm

(d) Is the image real or virtual? Is the image distance q positive or negative?

(e) Calculate the required focal length.?=_____ cm

(f) Find the power of the lens in diopters.?=_____ diopters

(g) If a contact lens is to be prescribed instead, find p, q, and f, and the power of the lens.

p=_____ cm

q=_____ cm

f=_____ cm

P=_____ diopters

Explanation / Answer

a) farsightedness as he can see far away objects but not see clearly near one

d) the image is virtual and positive

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