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Find the de Broglie wavelength of electr...

Find the de Broglie wavelength of electrons moving with a speed of `7 xx 10^(6) ms^(-1)`

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de Broglie wavelength ,
`lamda = h/(mv)`
`implies lamda = (6.6xx10^(-34))/(9.1 xx10^(-31)xx7xx10^6)`
`= (6.6 xx10^(-34))/(63.7 xx10^(-25))`
`= 1.03 xx10^(-10) m = 1.03 Å`
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