1. The problem statement, all variables and given/known data For the ground state of a particle in a rigid box, we have seen that the momentum has a definite magni- tude (h/2π)k but is equally likely to be in either direction. This means that the uncertainty in p is Δp≈ (h/2π)k. The uncertainty in position is Δx≈ a/2. Verify that these uncertainties are consistent with the Heisenberg uncertainty principle. 2. Relevant equations Heisenberg Relations Δp= h/2pi Δk ...(1) ΔxΔk ≥ 1/2 ΔxΔp≥ (h/2pi)/2 3. The attempt at a solution (a/2)Δp≥h/4pi Δp≥h/(2pi*a ) p=(pi/a)h-bar I am not sure, if I am in the right direction. I feel that I am going in circles. Any help?