Heat flow across a hollow sphere of inner radius 'r1' and outer radius 'r2' is directly proportional to (A) (r2- r1)/r1. r2 (B) r1. r2/(r2- r1) (C) (r2 + r1)/r1. r2 (D) r1. r2/(r2 + r1)

Heat flow across a hollow sphere of inner radius 'r1' and outer radius 'r2' is directly proportional to
(A) (r2- r1)/r1. r2
(B) r1. r2/(r2- r1)
(C) (r2 + r1)/r1. r2
(D) r1. r2/(r2 + r1)
by

1 Answer

Answer :

(B) r1. r2/(r2- r1)
by

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Last Answer : This answer was deleted by our moderators...

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