Find kinetic energy of photoelectrons produced by light
The work function of a metallic surface is 4 eV. If the surface is illuminated by light of wavelength 500 nm and 300 nm, for each case are photoelectrons produced and if so what is their kinetic energy in MeV? Note 1 nm = 10-9 m.
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Measurement of colligative properties is a classic method for determinatin of molecular weights. A mixture of a 1.0 g sample ofan unknown compound in 50 g camphor is found to have a melting point of 176 degrees Celsius.
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If the surface is illuminated by light of wavelength 500 nm and 300 nm, for each case are photoelectrons produced and if so what is their kinetic energy in MeV? Note 1 nm = 10-9 m.
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