Fig. 4.1 shows a converging lens, an object O and the image I formed by the lens.
(a(i))[1]
Define linear magnification.
(a(ii))[1]
Explain the meaning of a real image.
(b(i))[1]
On Fig. 4.1 a horizontal ray has already been drawn from the top of the object to the lens. Continue this ray until it meets the image.
(b(ii))[1]
Using Fig. 4.1, determine the focal length of the lens.
(b(iii))[3]
Draw a further two rays from the top of the object to show how the image is formed.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “image height divided by object height OR image distance divided by object distance” …