A circular plate, a cube and a sphere, all made up of same material and having the same mass, are heated to 300 C and left in a room. Which of them will have the slowest rate of cooling?

A circular plate, a cube and a sphere, all made up of same material an

1.	A circular plate, a cube and a sphere, all made up of same material and having the same mass, are heated to 300 C and left in a room. Which of them will have the slowest rate of cooling?
A.	Circular plate
B.	Cube
C.	Sphere
D.	All will cool at the same rate
Answer» D. All will cool at the same rate