A photon of energy 10.2 eV collides inelastically with a Hydrogen atom in ground state. After a certain time interval of few micro seconds another photon of energy 15.0 eV collides inelastically with the same hydrogen atom, then the observation made by a suitable detector is?

• A. 1 photon with energy 10.2 eV and an electron with energy 1.4 eV
• B. 2 photon with energy 10.2 eV
• C. 2 photon with energy 1.4 eV
• D. one photon with energy 3.4 eV and 1 electron with energy 1.4 eV