A solid sphere of copper of radius R and hollow sphere of copper of inner radius r and outer radius R are heated to the same temperature and allowed t

A solid sphere of copper of radius R and hollow sphere of copper of inner radius r and outer radius R are heated to the same temperature and allowed to cool in the same environment. The rate of cooling is
A. more for hollow sphere
B. more for solid sphere
C. same for both the sphere
D. can not say

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - A
`( d theta)/(dt)=(kA)/(mc)(theta-theta_(0))and M_(h) lt M_(s)`

5 views Answered 2023-02-05 15:29

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