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The Uncertainty in the position of an el...

The Uncertainty in the position of an electron `(mass=9.1times10^(-31)kg)` moving with a velocity `(663)/(314times91)ms^(-1)` ,accurate upto `0.001%` is `X times10^(3)m` , then what is the value of X ?,[(`h=6.63times10^(-34)Js)`],`(pi=3.14)`

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