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The rates of coling of a body at tempeer...

The rates of coling of a body at tempeerature `100^(@)C` and `80^(@)C` are `x_(1)` and `x_(2)` respectively, when placed in a room of tmpeerature `40^(@)C` then `(x_(1))/(x_(2))` is .

A

`4//5`

B

`5//4`

C

`3//2`

D

`2//3`

Text Solution

Verified by Experts

The correct Answer is:
C
`(dtheta)/(dt) prop (0 -theta_(0)) rArr R prop theta - theta_(0)`
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