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Oscillations and Waves
Quick questions on Stationary waves explained: H2 Physics Oscillations and Waves
5short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is formation of a stationary wave?Show answer
A stationary wave forms when two progressive waves of the same frequency, wavelength and amplitude travel in opposite directions and superpose. In practice this happens when a wave reflects off a boundary and overlaps the incoming wave.
What are strings fixed at both ends?Show answer
A string fixed at both ends must have a node at each end. The allowed wavelengths are:
What is q1?Show answer
State two differences between a stationary wave and a progressive wave. [2 marks]
What is q2?Show answer
A string fixed at both ends has length and the wave speed is . Find the fundamental frequency. [2 marks]
What is q3?Show answer
Explain why a pipe closed at one end produces only odd harmonics. [2 marks]
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