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An electron has mass 9.1xx10^(-28)g and ...

An electron has mass `9.1xx10^(-28)g` and is moving with a velocity of `10^(5)cm//sec`. Calculate its kinetic energy and wavelength when `h=6.626xx10^(-27)erg-sec`

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The correct Answer is:
`4.55xx10^(-8)erg;lamda=7.28xx10^(-5)cm`
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