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5 cards from this section. Quick, good the night before a test.
What is Huygens' Principle?
Think about how wavefronts are formed.
Define refraction.
Recall what happens when you see a straw in a glass of water.
What does Huygens' principle state?
Think about how a ripple on water behaves.
True or False: Light cannot diffract.
Consider observing light patterns on a wall.
A light wave has a wavelength of 500 nm in a vacuum. It enters a medium with a refractive index of 1.5. Calculate the new wavelength inside the medium.
Use the relationship between wavelength and refractive index.
In a Young's double-slit experiment, the fringe spacing on a screen is 0.5 cm when the wavelength is 600 nm. If the wavelength is changed to 700 nm, how will the fringe spacing change?
Consider the relationship between fringe spacing, wavelength, and distance to the screen.
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