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Explanation of Stationary Waves

AQA AS-level PhysicsWavesLesson 19 of 24

Stationary waves vibrate freely and do not transfer energy to their surroundings. The amplitude is zero at the nodes and maximum at the anti nodes. Because the nodes and antinodes are in fixed positions, no energy is transferred in a freely vibrating stationary wave.

Diagram

Two progressive waves passing through each other reinforce each other when in phase

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Key terms in this lesson

Phase difference
The difference, measured in radians or degrees, between the phases of two oscillating points or waves.

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