Physics (AS & A Level) · Feb / March 2023 · Paper 12 · Question 26
9702Stationary waves
Two waves of equal frequency and amplitude are travelling in opposite directions along a stretched string. When they meet, they form a stationary wave with three nodes and two antinodes. The frequency of both waves is doubled and a new stationary wave is formed. How many antinodes are there in the new stationary wave?
- A1
- B2
- C3
- D4
As printed in the paper
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Correct answer: D. 4
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