A photon of `3000 Å` is obserbed by a gas  and then re-emmited as two  photon
Channel: Doubtnut
Date: 26/07/2020

A photon of `3000 Å` is obserbed by a gas  and then re-emmited as two  photon .One photon in red (`7600 Å)` what  would  be the  wavelength  of the other  photon ?