Calculate the uncertainity in momentum of an electron if uncertainty in its position is 1Å `(10^(-10)m)`.

Explanation

According to Heisenberg.s uncertainity principle, `trianglex trianglep ge h/(4pi)`
`trianglep ge h/(4pi) .1/(trianglex)`
`ge (6.626 xx 10^(-34))/(4 xx 3.14) xx (1)/(10^(-10)) ge 5.28 xx 10^(-25)kgms^(-1)`
Hence the uncertainity in momentum of the electron is `5.28 xx 10^(-25)kgms^(-1)`.