Question

32. There are materials which absorb photons of shorter wavelength and emit photons of
longer wavelength. Can there be stable substances which absorb photons of larger wavelength and emit light of shorter wavelength
​

Answer 1

Answer:

If the materials absorb photons of shorter wavelength, then the energy of the incident photon on the material is high and the energy of emitted photon is low when it has a longer wavelength. But, the energy of the incident photon is low for the substances which have to absorb photons of larger wavelength

Explanation:

✌