For the first excited state $(n=2)$ of the particle in a box of width $\mathrm{L}$, what is the approximate uncertainty in momentum?
A) $3 \mathrm{~h} / \mathrm{L}$
B) $\mathrm{h} / 2 \mathrm{~L}$
C) $\mathrm{h} / \mathrm{L}$
D) $2 \mathrm{~h} / \mathrm{L}$

Question

Quizplus · Accepted Answer

The uncertainty in momentum for a particle in a box is given by $\Delta p \approx \frac{h}{L}$ for the first excited state.

For the First Excited State (n=2)(n=2)(n=2) Of the Particle in a Box of Width

For the First Excited State $(n=2)$ Of the Particle in a Box of Width