Lesson: Vision High School Physics

Physics

In this lesson, we will learn how to describe how a human eye lens combined with artificial lenses focus parallel and divergent incident light rays.

Worksheet

Q1:

Fill in the blanks: As an object is brought closer to an eye, the thickness of the lens to accommodate, which makes the focal length of the lens and the power of the lens . The distance between the center of the lens and the image formed .

Q2:

The diagram shows light rays diverging from a point, passing through an eye, and focusing at the retina. The eye lens is at its maximum accommodation.

Which of the distances shown is equal to the near point of the eye?

Which of the distances shown is equal to the focal length of the eye?

Q3:

A myopic person has a far point of 3 m. Find the power of the diverging lens that would correct their vision to give a far point at infinity. Answer to two decimal places.

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