Chapter 29: Introduction to Quantum Physics

Which formula may be used for the momentum of all particles, with or without mass?

(a) What is the binding energy of electrons to a material from which $4.00-\mathrm{e}\mathrm{V}$ electrons are ejected by $400-\mathrm{n}\mathrm{m}$ EM radiation? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?

Question: (a) What is the binding energy of electrons to a material from which $4.00-\mathrm{e}\mathrm{V}$ electrons are ejected by \({\rm{400 - nm}}\]) EM radiation? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?

Give an example of a physical entity that is quantized. State specifically what the entity is and what the limits are on its values.

What is the energy in joules and eV of a photon in a radio wave from an AM station that has a $1530-\mathrm{k}\mathrm{H}\mathrm{z}$ broadcast frequency?

Question: What is the energy in joules and eV of a photon in a radio wave from an AM station that has a $1530-\mathrm{k}\mathrm{H}\mathrm{z}$ broadcast frequency?

Why don’t we feel the momentum of sunlight when we are on the beach?

(a) Find the energy in joules and eV of photons in radio waves from an FM station that has a $90.0-\mathrm{M}\mathrm{H}\mathrm{z}$ broadcast frequency. (b) What does this imply about the number of photons per second that the radio station must broadcast?

Question: (a) Find the energy in joules and eV of photons in radio waves from an FM station that has a $90.0-\mathrm{M}\mathrm{H}\mathrm{z}$ broadcast frequency. (b) What does this imply about the number of photons per second that the radio station must broadcast?

Calculate the frequency in hertz of a $1.00-MeV$$\gamma$-ray photon.