Question

Two spheres A and B have same radius but the heat capacity of A is greater than that of B. The surfaces of both are painted black. They are heated to the same temperature and allowed to cool. Then:

• A. A cools faster than B
• B. both A and B cool at the same rate
• C. at any temperature the ratio of their rates of cooling is a constant
• D. B cools faster than A

Answer 1

Answer: (C), (D)

The correct options are
C at any temperature the ratio of their rates of cooling is a constant
D B cools faster than A