Questions
A sphere, a cube and a thin circular plate all made of the same mass and finish are heated to a temperature of 200oC; which of these objects will cool slowest when left in air at
room temperature ?
detailed solution
Correct option is A
Sphere has minimum surface area hence it takes more time to cool at same rate.Talk to our academic expert!
Similar Questions
For a black body at temperature 727°C, its radiating power is 60W and temperature of surrounding is 227° C. If temperature of black body is changed to 1227°C, then its
radiating power will be :
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