Paper & Mark Scheme (Merged) June 2025 [VERIFIED]
IB/G/Jun25/G4007/E10 8463/2F
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Answer all questions in the spaces provided. box
0 1 Light waves and water waves can both be reflected.
A student used a ray box and a mirror to investigate the reflection of light.
Figure 1 shows some of the apparatus used.
Figure 1
0 1 . 1 The student measured angle A and angle B.
What equipment should the student have used to measure each angle?
[1 mark]
Question 1 continues on the next page
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IB/G/Jun25/8463/2F
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The student moved the ray box and changed the direction of the ray of light. box
The student recorded different pairs of values of angle A and angle B.
Table 1 shows the results.
Table 1
Angle A in degrees Angle B in degrees
0 0
5 5
11 11
20 20
29 29
IB/G/Jun25/8463/2F
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0 1 . 2 Figure 2 shows an incomplete graph of the results.
Figure 2
Complete Figure 2.
You should:
label the y-axis
plot the remaining data from Table 1
draw a line of best fit.
[4 marks]
0 1 . 3 What is the relationship between angle A and angle B?
[1 mark]
Tick () one box.
Angle A is directly proportional to angle B.
There is a negative correlation between angle A and angle B.
The relationship between angle A and angle B is non-linear.
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IB/G/Jun25/8463/2F