Two metallic spheres A and B of same material with mass of A double that of B,at same temperature are allowed to cool.The ratio of rates of cooling of A and B is Ans-(1/2) 1/3

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ROSHAN MUJEEB · Answer

pfa

Vikas TU · Answer

According to Stefan's law ΔQ=eσAT^4Δt also ΔQ=mcΔT⇒ΔQ=mcΔT=eσAT^4Δt ⇒ΔTΔt=eσAT^4/mc=eσT^4/mc*[π(3m4/πp)^2/3] =k(1/m)^1/3 ∴ (ΔT1/Δt1)/(ΔT2/Δt2)=(m2/m1)^1/3=(1/3)^1/3

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Two metallic spheres A and B of same material with mass of A double that of B,at same temperature are allowed to cool.The ratio of rates of cooling of A and B is Ans-(1/2) 1/3

Two metallic spheres A and B of same material with mass of A double that of B,at same temperature are allowed to cool.The ratio of rates of cooling of A and B is
Ans-(1/2)^1/3

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Two metallic spheres A and B of same material with mass of A double that of B,at same temperature are allowed to cool.The ratio of rates of cooling of A and B is Ans-(1/2) 1/3

Two metallic spheres A and B of same material with mass of A double that of B,at same temperature are allowed to cool.The ratio of rates of cooling of A and B is Ans-(1/2)1/3

2 Answers

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Two metallic spheres A and B of same material with mass of A double that of B,at same temperature are allowed to cool.The ratio of rates of cooling of A and B is
Ans-(1/2)^1/3