Category Archives: How can waves explain the behaviour of light?

Interference Demo: Speakers

This is a demonstration of the interference pattern created by two speakers playing the same 2000 Hz tone. It is carried out by moving a microphone through the sound field and noting that the sound is louder in some spots … Continue reading

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Pipe resonance

A column of water and a tuning fork are used to illustrate the raised amplitude that results from pipe resonance

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Professor Dave: Wave Mechanics

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Professor Dave explains: What is Light?

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Professor Dave explains: Standing Waves and Harmonics

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Professor Dave: Interference, Reflection, and Diffraction

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Strobe Lights and String – Standing Waves

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Fermilab video – Why does light slow down in water?

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Fermilab video – Why does light bend when it enters glass?

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PhET – Wave Interference

Make waves with a dripping faucet, audio speaker, or laser! Add a second source to create an interference pattern. Put up a barrier to explore single-slit diffraction and double-slit interference.

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