Question

A. What is the energy in 10^-3 eV of a photon that has a momentum of 6.13×10⁻²⁹ kg ⋅ m/s ?

B. What is the energy in 10^-9 eV of a photon in a radio wave from an AM station that has a 1,506 kHz broadcast frequency?

C. Calculate the frequency in 10²⁰ Hz of a 0.571 MeV γ-ray photon.

D. A certain molecule oscillates with a frequency of 1.73×10¹³ Hz. What is the approximate value of n for a state having an energy of 1.0 eV? Hint: use appropriate rounding for quantized states.

E. What is the wavelength of an electron moving at 2.82% of the speed of light? Give your answer in picometers.

F. What is the binding energy in eV of electrons in a certain material if the longest-wavelength photon that can eject electrons is 350 nm?

G. UV radiation having a wavelength of 103 nm falls on a metal, to which electrons are bound by 3.2 eV. What is the maximum kinetic energy of the ejected photoelectrons?

H. What power, is dissipated in 56.9 μs by 0.68×10¹⁵ electrons ejected from a material by 79 nm photons, if they are bound to the material by 4.23 eV?

Answer 1