Step 4 of 4 · topic
Waves
Pearson Edexcel 9PH0 — matched to your course.
Phase, interference, diffraction, stationary waves and polarisation.
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Interference: Young's slits and diffraction gratings
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Subtopics and study areas
- Measure interference or diffraction patterns and use geometry to determine wavelength.
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Investigating standing waves on a string
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Subtopics and study areas
- Relate resonant length, frequency and wavelength while controlling tension.
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Speed of sound using an oscilloscope
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Subtopics and study areas
- Use a signal generator, speaker, microphone and two-channel oscilloscope to determine the speed of sound in air.
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Waves
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Subtopics and study areas
- Relate phase difference to path difference.
- Analyse interference and stationary waves.
- Apply diffraction-grating and polarisation concepts.
