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The bodies have thermal capacities in th...

The bodies have thermal capacities in the ratio `3:4` and the rates of loss of heat in the ratio `3:5` Their rates of cooling will be in the ratio of .

A

`9 :20`

B

`4:5`

C

`5:4`

D

`1:1`

Text Solution

Verified by Experts

The correct Answer is:
B
`(dQ)/(dt) =ms((d theta)/(dt))`
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