If the wavelength of electromagnetic radiation is doubled, what happens to the energy of photon ?

Wavelength of electromagnetic radiation is doubled, what will happen to energy of photon?

The wavelength of electromagnetic radiation is doubled. What will happen to the energy of the photons of the new radiation ?

If the wavelength of an electromagentic radiation is doubled, what will happen to (i) the energy of photons and (ii) the momentum of photon?

If the wave length of E.M radiation is doubled, what happens to the energy ot photon ?

The wavelength of an electromagnetic radiation is lamda . What is the energy of a photon of this radiation?