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B) Einstein explains photoelectric effect
1) Light intensity and electron emission explained.
Brightness (Intensity) - measure of # of photons emitted.
Frequency measure of
energy of light
**eV - electron volts - unit of energy
How much work did this photon have to do to remove the electron?
Answer: 3 eV
What would happen if a photon
Photon would not have enough energy to emit an electron
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