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2 cards from this section. Quick, good the night before a test.
What is the photoelectric effect?
Think about how light interacts with metal surfaces.
Define work function.
It's an energy barrier the electrons must overcome.
What is the term for the minimum energy needed to remove an electron from a metal?
Consider which term refers to energy barriers in metals.
True or False: The maximum kinetic energy of emitted electrons depends on the intensity of the incoming light.
Think about how intensity affects the number of photons but not their energy.
A metal has a work function of 3.0 eV. If illuminated with light of frequency 8.0 x 10^14 Hz, calculate the maximum kinetic energy of the emitted electrons.
Use the provided frequency to derive photon energy first.
If a photon has a momentum of 4.1 x 10^-27 kg·m/s, what frequency of light does it correspond to?
Consider the relationships between momentum, wavelength, and frequency.
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