Recent content by stimpyzu

Thanks guys, I really appreciated your input. It helped a lot. What a friendly bunch you guys are in this forum! Thanks a million!

Hello everyone! I'm having a real tough time with this one, maybe I can get a little help. A small helium neon laser emits red visible light with a power of 3.2 mW in a beam that has a diameter of 2.5mm. What is the intensity of the laser beam? Does this intensity obey the inverse square...