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Calculate the wavelength of an electron ...

Calculate the wavelength of an electron ( mass `= 9.1 xx 10^(-31) kg `) moving with a velocity of `10^(3) ms^(-1) ( h = 6.6 xx 10^(-34 ) kg m^(2) sec^(-1) `) .

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Given `m = 9.1 xx 10^(-31) kg, v = 10^(3) ms^(-1)` `lambda = ( h )/( mv)`
`= ( 6.6 xx 10^( - 34) kg m^(2) sec^(-1))/( 9.1 xx 10^(-31) kg xx 10^(3) ms^(-1))`
`= 7.25 xx 10^(-7) m `
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