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A body at 50^(@)C cools in a surrounding...

A body at `50^(@)C` cools in a surroundings maintained at `30^(@)C` The temperature at which the rate of cooling is half that of the beginning is .

A

`16.32^(@)C`

B

`26.3^(@)C`

C

`40^(@)C`

D

`46.3^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
C
`(d theta)/(dt)=-K(theta-theta_(0))rArrRproptheta-theta_(0)`
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