Physics · May / June 2024 · Paper 42 · Question 6
0625
As printed in the paper
Show the answer and mark scheme
6(a)(i)[2]
C marked and labelled at a peak of the sine wave
R marked and labelled at a trough of the sine wave
6(a)(ii)[1]
graph / it does not show (variation with) displacement
6(a)(iii)[1]
(amplitude) increases AND (frequency) decreases
6(b)[3]
0.12 m
v = f λ OR (λ =) v / f OR (λ) = 1500 / 13 000
1500 / 13 000 OR 1.2 × 10N
330 m / s ⩽ speed ⩽ 350 m / s
6(c)[1]
330 m / s ⩽ speed ⩽ 350 m / s
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