PHYSICS · Single correct · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter
Problem
Two metal cans are identical, except that one has a shiny silver outer surface and the other has a dull black outer surface. They each have the same mass of hot water at the same temperature sealed inside them. They are both in a vacuum in the darkness of outer space.
How does the temperature of the water in each one change?
(A) The temperature of the water does not change.
(B) The water in the black can cools more slowly than that in the silver can.
(C) The water in the silver can cools more slowly than that in the black can.
(D) They both cool down at the same rate.