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Sound travels ~4× faster in water than in air — about 1,480 m/s vs 343 m/s.
Dual Nature of Radiation and Matter
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#1
Photoelectric Effect
Einstein's photoelectric equation relates the maximum kinetic energy of emitted electrons to the frequency of incident light and the work function of the metal.
Terms:
K_{max}
Maximum kinetic energy of emitted electrons
JouleshPlanck's constant
Joule secondsFrequency of incident light
HertzWork function of the metal
JoulesThe photoelectric effect is the emission of electrons from a material when light of sufficient frequency shines on it. It demonstrates the particle nature of light.
Common Use:
Used to explain phenomena like solar cells and photo detectors.
Einstein
photoelectric effect
quantum mechanics
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