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SAT® Subject Test in Physics

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Diffraction

SATPHY-EFG17M

Red light has a longer wavelength than green light which has a longer wavelength than blue light which has a longer wavelength than violet light.

When white light passes through a diffraction grating, which color is "bent" by diffraction the most?

A

red

B

green

C

blue

D

violet

E

All colors "bend" the same.