1.3-1.5 EMR & Matter, Photoelectric Effect
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8 Terms
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Radio waves (effect on mlc)
Spins nucleus
MRI
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Microwaves (effect on mlc)
spin electrons
cooks food by causing rotation & friction in H2O/fats
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Infrared (effect on mlc)
Mlc vibrate
night vision goggles
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Visible/UV (effect on mlc)
excites valence electrons to higher energy lvls (colors)
UV sunburns
UV-Vis spectroscopy
Determines concentration (amt/vol)
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X-Rays (effect on mlc)
excites core electrons
Medical imaging
Causes cell mutations
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Gamma (effect on mlc)
decays nucleus
aka Cosmic radiation - emitted by stars
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Beer’s Law
A = εbc
A = amt light absorbed (absorbance)
ε = constant
b = cuvette length
c = concentration
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Photoelectric effect - kinetic energy of ejected e-
Ek = Ephoton - Phi
Phi = metal’s work function
Note 
Flashcards (35)