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4 cards from this section. Quick, good the night before a test.
What is the photoelectric effect?
Think about how light interacts with metal surfaces.
What is stopping potential?
It’s related to the emitted electrons' movement.
What does the photoelectric effect demonstrate about light?
Think about how we can observe both characteristics in experiments.
True or False: The intensity of light affects the kinetic energy of emitted electrons.
Recall how intensity interacts with the number of emitted electrons.
An electron is emitted with a stopping potential of 2V when illuminated with light of frequency 5 x 10^14 Hz. Calculate its maximum kinetic energy in joules given that the charge of an electron is 1.6 x 10^-19 C.
Substitute the values carefully and remember units.
If the work function of a material is 4.5 eV, what is the threshold frequency? Convert your final answer to Hz.
Keep track of unit conversions carefully.
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