AP® Physics 1 & 2

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Moderate

Colors and Ejecting Electrons

APPH12-HOH7HE

An experiment is being performed with green light striking a metal surface, causing electrons to be ejected from the surface.

If the color of light used in this experiment is switched, which other color of light is guaranteed to also eject electrons from this same surface?

A

orange

B

blue

C

Both colors are guaranteed to also eject electrons.

D

Neither color is guaranteed to also eject electrons.