The difference in the ground state energies (kJ/mol) of an electron in one-dimensional boxes of lengths 0.2 nm and 2nm is ____. 49. The linear momentum of a particle described by the wavefunction $e^{-ikx}$ is
(a)kh
(b)-kh
(c)$k\hbar$
(d)$-k\hbar$
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.