Distant objects can be seen sharply, whereas nearby objects look blurred. Fig. 5.1 shows three rays from one point on a near object as they travel through the person’s eye. Refraction of the light as it enters the eye is ignored.
(a(i))[1]
State the name given to the eye defect shown in Fig. 5.1.
(a(ii))[2]
Explain why the image of the near object looks blurred.
(b(i))[2]
On Fig. 5.2, draw an appropriate lens in front of the eye and extend the paths of the three rays to the back of the eye.
(b(ii))[1]
State the type of lens used.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Long‑sight, far‑sight, or hypermetropia” …