A moving hydrogen atom absorbs a photon and comes to rest. What is the maximum possible wavelength of photon? `[hc = 12420 eV Å]`

What is the wavelength of a photon of energy 1 eV?

What is the wavelength of a photon of energy 1 eV?

A hydrogen atom initially in the ground level absorbs a photon and is excited to n=4 level then the wavelength of photon is

A hydrogen atom initially in the ground level absorbs a photon and is excited to n=4 level then the wavelength of photon is

An atom (not a hydrogen atom) absorbs a photon whose associated wavelength is 400 nm and then immediately emits a photon whose associated wavelength is 580 nm. How much net energy is absorbed by the atom in this process?

What is the energy of a photon in eV corresponding to the vissible light of maximum wavelength?

What is the energy of a photon of wavelength 6000Å

The electron in a hydrogen atom is in n=2 state. When it drops to the ground state a photon is emitted. What is the wavelength of photon?