A-LevelPhysicsWaves9702/12 · Oct/Nov 2016 · Q241 Mark
A transverse progressive wave of wavelength λ is set up on a stretched string. The graph shows the variation of displacement y with distance x at a particular instant of time. The displacement where distance x = λ/8 is y₁. [Figure 24.1] What are the next two values of x where the displacement y is again equal to y₁?
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A3λ/8 and 5λ/8
B3λ/8 and 9λ/8
C5λ/8 and 9λ/8
D9λ/8 and 17λ/8
✓ Correct answer
B: 3λ/8 and 9λ/8
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