explain the photoelectric effect based on Einstein equation.
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Where h = Planck's constant = 6.6261 × 10-34 Js. Since light is bundled up into photons, Einstein theorized that when a photon falls on the surface of a metal, the entire photon's energy is transferred to the electron. Below this frequency, there is no electron emission.
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The quantum energy imparted by the photons is partly used by the electron to overcome the molecular attraction of the surface. So, the kinetic energy of a photoelectron is = (energy imparted by photon) - (energy used to come out of the surface). This is Einstein's photoelectric equation.
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