quantum123 Messages 306 Reaction score 1 Thread starter Apr 17, 2010 #1 Why is a rough surface a good absorber and radiator of infrared?
pallidin Messages 2,207 Reaction score 3 Apr 17, 2010 #2 Because it's total "surface area" is increased. But that's a simple answer which may not apply in all cases.
Because it's total "surface area" is increased. But that's a simple answer which may not apply in all cases.
mgb_phys Science Advisor Homework Helper Messages 7,906 Reaction score 15 Apr 17, 2010 #3 Because an incoming photon is reflected more times on a rough surface and so the chances of it being absorbed are higher.
Because an incoming photon is reflected more times on a rough surface and so the chances of it being absorbed are higher.