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[" 30.The kinetic energy of an electron ...

[" 30.The kinetic energy of an electron is "5" eV.Calculate the "],[" de-Broglie wavelength associated with it "(h=6.6times10^(-34)],[J_(S),m_(e)=9.1times10^(-31)kg)],[[" (a) "5.47A," (b) "10.9A,]]

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