A free neutron is confined to a one-dimensional region of typical nuclear dimension = 11.0 fm. Estimate the minimum uncertainty δ in the neutron’s velocity?

a) 1.32 x 10⁷ ms
b) 6.63 x 10⁶ ms
c) 3.86 x 10⁶ ms
d) 2.51 x 10⁶ ms