Alternative to Practical: answer from the supplied diagrams and data. Upload drawings or graphs where requested; measurements taken from figures should be shown with their workings.
Plan an experiment to determine the focal length f of a converging lens. Available equipment in Fig. 4.1 includes a lamp illuminating a triangular hole in a card, a converging lens in a holder, a bench and a power supply. Use f = uv / (u + v), where u is object-to-lens distance and v is focussed-image-to-lens distance. List added apparatus; draw and label the arrangement including u and v; describe the method, how to obtain a sharp image, and how to calculate f.
Answer guidance
Using You must use the thing it names. An answer that reaches the right value another way may not score.
[6 marks]
5054/42/M/J/24Cambridge O Level Physics 5054 · May/June 2024 · Paper 4 variant 2 · Question 4