The graph below shows the results of an experiment in which your professor
pointed a heat lamp for five minutes toward two surfaces that are identical except
that one is black and the other white. The graph shows the temperature of each
surface during the experiment. Which line (squares or circles) in the graph most
likely represents the black surface and why ? If the heat lamp’s intensity remained constant throughout the experiment, why did the temperatures of the two surfaces stabilize rather than continue to warm (please use “radiative
equilibrium” in your answer).
