1.

Two blocks with heat capacities C_(1) and C_(2) are connected by a rod of length l, cross-sectional area Aand heat conductivity K. Initial temperature difference between the two blocks is T_(0). Assuming the entire system to be isolated from surroundings heat capacity of the rod to be negligible the temperature difference between the blocks as a function of time

Answer»

`T_(0)E^(-KA((C_(1)C_(2))/(C_(1)-C_(2)))t)`
`T_(0)e^(-KA((C_(1)C_(2))/(C_(1)+C_(2)))t)`
`T_(0)e^(-KA((C_(1)+C_(2))/(C_(1)C_(2)))t)`
`((C_(1)+C_(2))/(C_(1)C_(2)))T_(0)KA`

Answer :C


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