A solid sphere and a hollow sphere of the same material and size are heated to the same temperature and allowed to cool in the same surroundings. If the temperature difference between the body and that of the surroundings is T thenboth spheres will cool at the same rate for all the values of Tboth spheres will cool at the same rate for only small values of Tthe hollow sphere will cool at faster rate for all the values of Tthe solid sphere will cool at faster rate for all the values of T

Hrishant Goswami , 11 Years ago

Grade 10