WBCS.LIVE practice question

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 slowest rate of cooling?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Circular plate
  2. Cube
  3. Sphere
  4. All will cool at the same rate

Correct answer and explanation

Correct answer: Sphere