# Electron in a hydrogen atom (uncertainty principle)

## Homework Statement

For an electron in a hydrogen atom: in state psi(100):

find (del-x)(del-p) where

del x = integral of :[psi (x-<x>)2 psi]dv
and
del p = integral of: [psi(p-<p>)2 psi]dv

## The Attempt at a Solution

i attempted to multiply out both equations but i am not sure if this is the right way to go,
assume the answer is something like (delx) (del p)>= h/2 ? but i am not sure how to get there?

## Answers and Replies

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I suppose you could just do the integrals. BTW is p supposed to be px?

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