A sphere ,a cubeand a thin circular plate,all made of the same meteriel and having the same mass are initially heated to a temperature of 200°C.Which of them will cool fastest and which one slowest when left in air at room temperature?

A sphere ,a cubeand a thin circular plate,all made of the same meterie

1.	A sphere ,a cubeand a thin circular plate,all made of the same meteriel and having the same mass are initially heated to a temperature of 200°C.Which of them will cool fastest and which one slowest when left in air at room temperature?
Answer» Solution :The circular plate has larger surface AREA, while the SPHERE has the least area . HENCETHE disc will cool FASTEST and the sphere will cool SLOWEST.