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Penn State

2. Dispersion – separation of polychromatic light into its component wavelengths (colors)

Wikipedia - Public Domain

Trivia - What famous album cover has a prism on the front?

Their big hit?

Each color has a different wavelength


NASA

Red - fastest
(slowed least),
bent least

Violet - slowest (slowed most),
bent most

Lucas V. Barbosa

Dispersive Medium – a medium in which the velocity of a wave depends on its frequency

(makes rainbows)

ex) Glass, water 

Nondispersive - Air

Wave Nature of Light