Question

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 1

`Delta x Delta p = (h)/(4pi) or Delta x +m Delta v = (h)/(4pi)`
`Delta v = (h)/(4pi xx Delta x xx m)`
`Delta v = (6.626 xx 10^(-34) Js)/(4 xx 3.14 xx 0.1xx10^(-10) m xx 9.11 xx 10^(-31) kg)`
`= 0.579 xx 10^(7)m s^(-1) (1.1 kg m^(2) s^(-2))`
` = 5.79 xx 10^(6) m s^(-1)`