consider two light sources and provided information below and answer question
3.1 what is the energy per photon emitted by the uv light? please draw energy diagram to explain k.e.,e and work function
3.2 what is the energy per photon from the red laser light?
3.3 what is the total number of photon emitted by the laser pointer in 120 seconds if the intensity(I) is 3 mW