A-LevelPhysicsSuperposition9702/12 · May/June 2025 · Q301 Mark
Two waves meet. What is not a necessary condition for the waves to produce a stationary wave?
AThey must be of the same type.
BThey must have the same period.
CThey must have the same wavelength.
DThey must travel in the same direction.
✓ Correct answer
D: They must travel in the same direction.
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