Black Body Radaiton?

Question

Consider three objects with the same radii and temperatures, Bob = 2000 K, Patrick = 4000 K and Gary = 6,000 K. Which has the largest luminosity and which has the smallest? Why? How many times bigger is the largest luminosity than the smallest? What color is each object according to the temperatures listed?

Answer 1

Try here ..........

http://en.wikipedia.org/wiki/Black_body_radiation