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The heat is flowing through two cylinder...

The heat is flowing through two cylinderical rods of same material. The diameters of the rods are in the ratio `1:2` and their lengths are in the ratio `2:1`. If the temperature difference between their ends is the same, the ratio of rates of flow of heat through them will be

A

`1:1`

B

`2:1`

C

`1:4`

D

`1:8`

Text Solution

Verified by Experts

The correct Answer is:
D
`(dQ)/(dt) prop A/d`
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