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Home » A sphere, a cube, and a thin circular plate, all of the same material and same mass are initially heated to same high temperature.
A sphere, a cube, and a thin circular plate, all of the same material and same mass are initially heated to same high temperature.
CBSE | Class 11 | NCERT Exemplar | Physics | Thermal Properties of Matter
A sphere, a cube, and a thin circular plate, all of the 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

Answer:

The correct answer is c) plate will cool fastest and sphere the slowest

Explanation: Every one of the aforementioned shapes has the same mass. Out of the three plates, the round plate will have the most surface area. This will allow the plate to cool down more quickly. The sphere will be the form with the smallest surface area for a given volume out of the three. As a result, the sphere will cool down the slowest. As a result, we can say that the plate will cool first, followed by the sphere.

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