STANDARDPhysics-Thermodynamics
STANDARD Physics Heat Transfer MCQ Question
Type: MCQ-conceptual-Medium-Class 11
A sphere, a cube and a thin circular plate, all of same material and same mass, are initially heated to same high temperature.
A
Plate will cool fastest and cube the slowest.
B
Sphere will cool fastest and cube the slowest.
C
Plate will cool fastest and sphere the slowest.
D
Cube will cool fastest and plate the slowest.
Correct Answer
Option C
Detailed Explanation
The circular plate has maximum surface area and as such it cools the fastest. For a given volume (mass in this case), a sphere has the least surface area and accordingly cools the slowest.
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