The eye

Figure 1 shows parallel light rays entering the eye of a person with a vision defect, along with two correcting lenses, Lens X and Lens Y.

Figure 1: Schematic showing a vision defect and two correcting lenses.

Explain which lens, Lens X or Lens Y, should be used to correct the vision defect shown in Figure 1.

[2]

Figure 1 shows parallel light rays entering the eye of a person with a vision defect, along with two correcting lenses, Lens X and Lens Y.

Figure 1: Schematic showing a vision defect and two correcting lenses.

Explain which lens, Lens X or Lens Y, should be used to correct the vision defect shown in Figure 1.

[2]

The eye Questions