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A student is investigating the refraction of light - Edexcel - GCSE Physics Combined Science - Question 3 - 2021 - Paper 1
Question 3
A student is investigating the refraction of light. Figure 4 shows part of the apparatus and the angles to be measured. Figure 4 The student measures angle r for ... show full transcript
Worked Solution & Example Answer:A student is investigating the refraction of light - Edexcel - GCSE Physics Combined Science - Question 3 - 2021 - Paper 1
Step 1
On the graph in Figure 5, draw the best fit curve.
Answer
To draw the best fit curve on the graph, ensure it passes through the origin and connects all the data points in a smooth fashion. The curve should reflect the pattern of the results as closely as possible without being a straight line.
Step 2
Step 3
Describe how angle r changes with angle i for the results shown on the graph in Figure 5.
Answer
As angle i increases, angle r also increases. However, this increase is not linear; the increments in angle r become smaller for the same increments in angle i, indicating that r will always remain less than i.