Same chapter3 marksDifficulty: Medium
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Oscillations and Waves
3 marksDifficulty: Medium
What are stationary waves, and how do they differ from progressive waves?
Original Khojo Papers practice question — not from a past board paper.
Answer
A stationary wave is formed by the superposition of two identical progressive waves travelling in opposite directions. Its energy is not carried forward, its amplitude varies from zero at the nodes to a maximum at the antinodes, and all the particles between two nodes are in the same phase. A progressive wave carries energy forward and every particle has the same amplitude.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The distance between two consecutive nodes is half a wavelength.
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