An Electron Is Confined to a Region of Space of Length

Multiple Choice

An electron is confined to a region of space of length L = 0.2 nm.Its minimum kinetic energy,assuming that p = $\Delta$ p,is approximately

A) 1.5 $\times$ 10⁵ J
B) 5.7 $\times$ 10^-20 J
C) 3.8 $\times$ 10^-20 J
D) 3.8 $\times$ 10^-23 J
E) 7.4 $\times$ 10^-24 J