Two solid spheres of radii R1 and R2 made of same material and have similar surfaces. The spheres are raised to the same temperature and then allowed to cool under identical conditions. Assuming spheres to be perfect conductors of heat, then the ratio of initial rates of cooling are - VgyanHub

Question:

Two solid spheres of radii R₁ and R₂ made of same material and have similar surfaces. The spheres are raised to the same temperature and then allowed to cool under identical conditions. Assuming spheres to be perfect conductors of heat, then the ratio of initial rates of cooling are

Options :

(a) R1^4/R2^4
(b) R2^3/R1^3
(c) R1^2/R2^2
(d) R2/R1

Answer :

(d) R₂/R₁

Answer Steps :

step 1

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