How Many Photons Does A 60 Watt Bulb?
How Many Photons Does A 60 Watt Bulb? so, #photons= 60/3.2EXP(-19)=1.87EXP20 photons per second. What is the number of photons emitted by a 60 watt bulb? So, in order to emit 60 Joules per second, the lightbulb must emit 1.8 x 1020 photons per second. (that’s 180,000,000,000,000,000,000 photons per second!) How many photons second are