The uncertainty in determining the duration during which an electron remains in a particular energy level before returning to the ground state is 2.0 x 10(^{-9})s. Calculate the uncertainty in determining its energy at that level. ((frac{h}{2 pi}) = h = 1.054 x 10(^{-34})Js)
Explanation
(Delta E geq frac{h}{2 pi} times frac{1}{Delta t})
(geq 1.054 times 10^{-37} times frac{1}{2 times 10^{-9}})
(geq 5.27 times 10^{-28})J