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`
A. `9 :20`
B. `4:5`
C. `5:4`
D. `1:1`
Correct Answer – B
`(dQ)/(dt) =ms((d theta)/(dt))`