Questions from Modern Physics

Q: A certain atom requires 3.0 eV of energy to excite

A certain atom requires 3.0 eV of energy to excite an electron from the ground level to the first excited level. Model the atom as an electron in a box and find the width L of the box.

Q: An electron in a one­dimensional box has ground­state

An electron in a one­dimensional box has ground­state energy 2.00 eV. What is the wavelength of the photon absorbed when the electron makes a transition to the second excited state?

Q: Consider a particle moving in one dimension, which we shall call

Consider a particle moving in one dimension, which we shall call the x­axis. a. What does it mean for the wave function of this particle to be normalized? b. Is the wave function ψ(x)= eax , where a...

Q: Recall that |ψ|2dx is the probability of finding the

Recall that |ψ|2dx is the probability of finding the particle that has normalized wave function ψ(x) in the interval x to x + dx. Consider a particle in a box with rigid walls at x = 0 and x = L. Let...

Q: Repeat Exercise 40.16 for the particle in the first excited

Repeat Exercise 40.16 for the particle in the first excited level.

Q: a. Find the excitation energy from the ground level to the

a. Find the excitation energy from the ground level to the third excited level for an electron confined to a box of width 0.360 nm. b. The electron makes a transition from the n = 1 to n = 4 level by...

Q: An electron is in a box of width 3.0 *

An electron is in a box of width 3.0 * 10-10 m. What are the de Broglie wavelength and the magnitude of the momentum of the electron if it is in a. the n = 1 level; b. the n = 2 level; c. the n = 3...

Q: When an electron in a one­dimensional box makes a transition

When an electron in a one­dimensional box makes a transition from the n = 1 energy level to the n = 2 level, it absorbs a photon of wavelength 426 nm. What is the wavelength of that photon when the el...

Q: An electron is bound in a square well of depth U0 =

An electron is bound in a square well of depth U0 = 6E1-IDW. What is the width of the well if its ground­state energy is 2.00 eV?

Q: An electron is moving past the square well shown in Fig.

An electron is moving past the square well shown in Fig. 40.13. The electron has energy E = 3U0. What is the ratio of the de Broglie wavelength of the electron in the region x > L to the wavelength fo...