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a solid sphere of radius R and a hollow sphere of inner radius r and outer R are heated to same temperature then rate of cooling is higher for hollow sph. explain.

a solid sphere of radius R and a hollow sphere of inner radius r and outer R are heated to same temperature then rate of cooling is higher for hollow sph. explain.

Grade:12

1 Answers

Khimraj
3007 Points
4 years ago
Rate of cooling is directly proportional to surface area and inversely proportional to mass so bath have same surface area but hollow sphere has less mass as it`s volume is lesser than solid sphere. So hollow sphere has higher rate of cooling

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