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The temperature of an spherical isolated black body falls from `T_(1)` and `T_(2)` in time t them time t isA. `tprop((1)/(T_(2))-(1)/(T_(1)))`B. `tprop((1)/(T_(2)^(2))-(1)/(T_(1)^(2)))`C. `tprop((1)/(T_(2)^(3))-(1)/(T_(1)^(3)))`D. `tprop((1)/(T_(2)^(4))-(1)/(T_(1)^(4)))` |
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Answer» Power radiated `P=4pir^(2)sigmaT^(4)=(ms(dT)/(dt))` `-int_(T_(1))^(T_(2))(dT)/(T^(4))=ctimpliest=K[(1)/(T_(2)^(3))-(1)/(T_(1)^(2))]` |
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