Fig. 5.1 illustrates a road junction with a car in motion and a truck that is not moving; the road is bordered by high walls on both sides. Fig. 5.2 illustrates a plane mirror positioned at the junction. Fig. 5.3 illustrates a blurred image of object O forming on the retina of a long-sighted eye, and the diagram names lens, cornea and retina. Fig. 5.4 shows the eye before the extra rays have been completed.
(a)[1]
On Fig. 5.1, place a label Y on the road at the point where the truck driver first spots the car.
(b)[2]
Demonstrate how this mirror enables the truck driver to see the car when it is in the position shown in Fig. 5.2.
(c)[4]
On Fig. 5.4, illustrate how long-sightedness is corrected by placing a suitable lens in front of the eye and extending the paths of the three light rays until they meet to form an image.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The car’s position is shown on a straight line from X, above and to the left of the road at the junction.” …