Standing waves or stationary waves are a consequence of wave superposition and are observed in strings and in columns of air. They can also help explain the behaviour of electrons in atoms. This question is about measuring the speed of sound in air using standing waves set up in a hollow tube. It tests your understanding of how standing waves are formed and some techniques for estimating uncertainties from graphs.
The question is taken from OCR Physics B H577/03, November 2020, and is reproduced by kind permission of OCR. The answers that follow are the responsibility of PHYSICS REVIEW, and have been neither provided nor approved by OCR.
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