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

Answer

`5.79 xx 10^6 ms^(-1)`

Explanation

`Delta v = h/(4 pi m Delta x) Delta x = 0.1 Å "or" = 0.1 xx 10^(-10) m`
`Delta v = (6.626 xx 10^(-34))/(4 xx 3.14 xx 9.11 xx 10^(-31) xx 0.1 xx 10^(-10))`
`= 5.79 xx 10^(6) ms^(-1)`