Question

A measurement indicates that a patient cannot clearly see any object that lies closer than 52.2 cm to the patient's eye. (a) Which of the following terms best describes this distance? focal length near point far point magnification (b) The patient needs to be able to clearly see objects that are just 23.0 cm distant. A contact lens is called for. What focal length (in cm) should this lens have? Assume the lens can be modeled as an ideal thin lens, which lies adjacent to the eye. cm (c) What is the power, P, of the contact lens (in diopters)? diopters

          A measurement indicates that a patient cannot clearly see any object that lies closer than 52.2 cm to the patient's eye.

(a) Which of the following terms best describes this distance?
focal length
near point
far point
magnification

(b) The patient needs to be able to clearly see objects that are just 23.0 cm distant. A contact lens is called for. What focal length (in cm) should this lens have? Assume the lens can be modeled as an ideal thin lens, which lies adjacent to the eye.
cm

(c) What is the power, P, of the contact lens (in diopters)?
diopters

A measurement indicates that a patient cannot clearly see any object that lies closer than 52.2 cm to the patient's eye.

(a) Which of the following terms best describes this distance?
focal length
near point
far point
magnification

(b) The patient needs to be able to clearly see objects that are just 23.0 cm distant. A contact lens is called for. What focal length (in cm) should this lens have? Assume the lens can be modeled as an ideal thin lens, which lies adjacent to the eye.
cm

(c) What is the power, P, of the contact lens (in diopters)?
diopters

Added by Steven J.

Question

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