Recent content by WRoach

Thank You! That's exactly what I needed. I was also given the radius of the eye, so by using the diameter as the length of the cylinder and dividing by the speed of light I arrive at Joules. I believe that's the correct result. Much appreciated. Also, that is quite interesting. Not sure why...

Homework Statement NOTE: This is part two of a problem. The first part used the equation for the energy density of photons in a blackbody to find the photon energy, but that doesn't seem to apply here. Imagine that you are looking at a 100 W lightbulb from 1 meter away. At any instant in...