Calculate the kinetic energy of moving electron which has a wavelenght of 4.8 pm
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find out the velocity of the electron using the formula wavelength =h/mv where h is Planck's constant , m is mass of the electron and v is velocity of the electron.plug in the values of wavelength planks constant and mass of electron you can find the velocity.now plug in the value of velocity in kinetic energy equation 1/2mv^2.
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