Lenses · CSEC Physics

13 past-paper questions on Lenses, part of Waves and Optics, from every CSEC Physics paper on Quelpr.

1. 5(b)4 marks· CSEC Physics · 1991 · Paper 2The eye shown in Figure 4 is long-sighted. Draw rays on the diagram to illustrate how the converging lens corrects this defect.
2. 1(d)3 marks· Physics Q1 1(d)During the investigation, Keshorn talked with his friend Atiba about the term 'focal length'. Define the term 'focal length'.
3. 1(e)1 mark· Physics Q1 1(e)With what piece of apparatus in physics is the term 'focal length' associated?
4. 1(e)3 marks· Physics Q1 1(e)Complete Figure 2 to show the paths of rays 1, 2 and 3 as they pass through the convex lens represented by the dotted line.
5. 3(a)(ii)4 marks· Physics Q3 3(a)(ii)In the space below, draw a labelled diagram using the converging lens to show clearly the following features: Principal axis, Principal focus, Focal length, Focal plane.
6. 4(b)(i)2 marks· Physics Q4 4(b)(i)Complete the ray diagram to show the path of the emerging ray after it passes through the lens.
7. 4(b)(ii)1 mark· Physics Q4 4(b)(ii)On the diagram, label the focal length, f.
8. 5(a)(i)2 marks· Physics Q5 5(a)(i)With reference to the focal lengh of the lens, describe the object distance required to produce EACH type of image.
9. 5(a)(iii)2 marks· Physics Q5 5(a)(iii)Complete the ray diagram shown in Figure 6.
10. 5(b)(i)2 marks· Physics Q5 5(b)(i)Suggest, with a reason, an appropriate distance from the lens at which the phone should be placed in order to get a magnified image on an external screen.
11. 6(a)(i)5 marks· Physics Q6 6(a)(i)Copy Figure 3 and draw the ray shown as it emerges on the other side of the lens and its relation to the focus. Show the principal axis and the focal length.
12. 6(a)(i)3 marks· Physics Q6 6(a)(i)a converging lens
13. 6(a)(ii)3 marks· Physics Q6 6(a)(ii)a diverging lens.