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The temperature of an spherical isolated...

The temperature of an spherical isolated black body falls from `T_(1)` and `T_(2)` in time t them time t is

A

`t=c[(1)/(T_(2))-(1)/(T_(1))]`

B

`t=c[(1)/(T_(2)^(2))-(1)/(T_(1)^(2))]`

C

`t=c[(1)/(T_(2)^(3))-(1)/(T_(1)^(3))]`

D

`t=c[(1)/(T_(2)^(4))-(1)/(T_(1)^(4))]`

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