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The kinetic energy of an electron is 4.5...

The kinetic energy of an electron is `4.55 xx 10^(-25)J`. Calculate the wavelength .
`[h = 6.6 xx 10^(-34)Js`, mass of electron `= 9.1 xx 10^(-31)kg]`

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`lamda = (h)/(sqrt(2m(KE))) = (6.626 xx 10^(-34)J.sec)/(sqrt(2 xx 9.1 xx 10^(-31)Kg xx 4.55 xx 10^(-25)J)) = 7.28 xx 10^(-7) m`
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