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The eye

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Question 20

Figure 1 shows light rays from a nearby object entering a healthy human eye.

A diagram showing a cross-section of a human eye. Light rays diverge from a single point source close to the left side of the eye. These rays pass through the curved, transparent cornea at the front. They then pass through a thick, rounded lens. The light rays are bent strongly at both the cornea and the lens, converging to a single sharp point exactly on the retina at the back of the eye. Correctly labelled parts include the cornea, lens, and retina.

Describe how the cornea and the lens work together to focus these light rays onto the retina.

[2]

The eye Questions

  1. GCSE
  2. /Biology
  3. /The eye