Question

When objects at different distances are seen by the eye, which of the following remain constant?

Options

• The focal length of the eye-lens.

• The object-distance from the eye-lens.

•  The radii of curvature of the eye-lens.

• The image-distance from the eye-lens.

Answer 1

The image distance from the eye lens

In the human eye, the image is formed on the retina, which is at a fixed distance from the eye lens.