It is not possible for a photon to be completely absorbed by a free electron. Explain.

Is it possible for an atom to have 12 protons and 13 electrons ? Explain

In a phtoelectron effect energy of photon is directly proportional to the frequency and photons are totally absorbed by the electrons of metals then frequency and photons are totally absorbed by the electrons of metals then photoelectric current is:

A photon of energy h upsilon is absorbed by a free electron of a metal having work function phi lt h upsilon

An electron is in the ground state of a hydrogen atom. A photon is absorbed by the atom and the electron is excited to the n= 2 state. What is the energy in eV of the photon?

What is the speed of photon in free space?

A photon of energy hv is absorbed by a free electrons of a metal having work function phi lt hv

An electron in the first excited state of H atom absorbed a photon and further excited. The de broglie wavelength of the electron in this state is found to be 13.4 Å. Find the wavelength of the photon absorbed by the electron in angstroms. Also find the longest and the shortest wavelength emitted when this electron de-excited back to the ground state.

A photon of energy 12.09 eV is completely absorbed by a hydrogen atom initially in the ground state. The quantum number of excited state is

A photon of energy 12.09 eV is completely absorbed by a hydrogen atom initially in the ground state. The quantum number of excited state is