Psychology / Unit 4 Psych 0394 short lesson, about 20 seconds
Amplitude and Wavelength
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The idea
Amplitude is the height of a wave and wavelength is the distance between its peaks; both are physical, not perceptual.
In practice
Two light waves of equal wavelength and different amplitude differ in brightness and not in color.
Where people slip
Physical properties and perceived qualities are different vocabularies. Wavelength is physical; color is perceived.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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