A hydrogen atom is in its first excited state $(n=2)$. Using the Bohr theory of the atom, calculate (e) the potential energy

Consider an electron in its first excited state in a hydrogen atom. Determine its (a) orbital speed, (b) angular speed, (c) linear momentum, and (d) angular momentum.

A hydrogen atom is in its first excited state (n = 2). Using the Bohr theory of the atom, calculate the kinetic energy.

A hydrogen atom is in its first excited state (n = 2). Using the Bohr theory of the atom, calculate the linear momentum of the electron,

A hydrogen atom is in its first excited state (n = 2). Using the Bohr theory of the atom, calculate the radius of the orbit.

A hydrogen atom is in its second excited state, $n=3$. Using the Bohr model of hydrogen, find the linear momentum of the electron in this atom.

A hydrogen atom is in its first excited state (n = 2). Calculate the potential energy of the system.

When light of wavelength 350 nm falls on a potassium surface, electrons having a maximum kinetic energy of 1.31 eV are emitted. Find the work function of potassium.

When light of wavelength 350 nm falls on a potassium surface, electrons having a maximum kinetic energy of 1.31 eV are emitted. Find the cutoff wavelength.

When light of wavelength 350 nm falls on a potassium surface, electrons having a maximum kinetic energy of 1.31 eV are emitted. Find the frequency corresponding to the cutoff wavelength.

A hydrogen atom is in its first excited state (n = 2). Calculate the kinetic energy of the electron.

Red light of wavelength 670 nm produces photoelectrons from a certain photoemissive material. Green light of wavelength 520 nm produces photoelectrons from the same material with 1.50 times the maximum kinetic energy. What is the material’s work function?

If the average energy released in a fission event is 208 MeV, find the total number of fission events required to operate a 100-W lightbulb for 1.0 h.

Tritium has a half-life of 12.33 years. What fraction of the nuclei in a tritium sample will remain after 5.00 yr? Discuss whether that is realistic.