1.

The ratio of radii of two cylindrical rods of same material is 2 : 1 and ratio of their lengths is 2 : 3. Their ends are maintained at same temperature difference. If rate of flow of heat in the longer rod is 2 Cal s^(-1), then that in the shorter rod will be

Answer»

`4" Cal s"^(-1)`
`12" Cal s"^(-1)`
`8" Cal s"^(-1)`
`1" Cal s"^(-1)`

ANSWER :B


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