A microscope using suitable photons is employed to locate an electron in an atom within a distance of 0.1 Å . What is the uncertainty involved in the measurement of its velocity ?

Explanation

`DeltaxDeltap= (h)/(4pi) " or "Deltax"m"Deltav=(h)/(4pi)`
`Deltav=(h)/(4piDeltaxm)`
`Deltav=(6.626xx10^(-34)"Js")/(4xx3.14xx0.1xx10^(-10)mxx9.11xx10^(-31)"kg")`
`=0.579xx10^(7)m" s"^(-1)(1J=1"kg "m^(2)s^(-2))`
`=5.79xx10^(6)m s^(-1)`