Exam 38: Photons and Matter Waves

Separate Compton effect experiments are carried out using visible light and x rays. The scattered radiation is observed at the same scattering angle. For these experiments:

A free electron in motion along the x axis has a localized wave function. The uncertainty in its momentum is decreased if:

If the kinetic energy of a non-relativistic free electron doubles, the frequency of its wave function changes by the factor:

The units of the Planck constant h are those of:

Which of the following electromagnetic radiations has photons with the greatest momentum?

The significance of $\mid$$\Psi$$\mid$ ² is:

In Compton scattering from stationary electrons the frequency of the emitted light is independent of:

In Compton scattering from stationary electrons the largest change in wavelength that can occur is:

The wavelength of light beam B is twice the wavelanght of light beam B. The energy of a photom in beam A is:

In a photoelectric effect experiment the stopping potential is:

A photon in light beam A has twice the energy of a photon in light beam B. The ratio p_A/p_B of their momenta is:

A free electron and a free proton have the same speed. This means that, compared to the matter wave associated with the proton, the matter wave associated with the electron has:

An electron with energy E is incident on a potential energy barrier of height E_pot and thickness L. The probability of tunneling increases if:

A non-relativistic free electron has kinetic energy K. If its wavelength doubles, its kinetic energy is:

A free electron has a momentum of 5.0 *10^-24kg . m/s. The wavelength of its wave function is:

In a photoelectric effect experiment at a frequency above cut off, the number of electrons ejected is proportional to:

Consider the following: The only possible processes are:

A free electron and a free proton have the same kinetic energy. This means that, compared to the matter wave associated with the proton, the matter wave associated with the electron has:

Which of the following electromagnetic radiations has photons with the greatest energy?

Of the following which is the best evidence for the wave nature of matter?