A body cools at the rate of `3^(@)C//`min when its temperature is `50^(@)C`. If the
Channel: Doubtnut
Date: 2020-06-14

A body cools at the rate of `3^(@)C//`min when its temperature is `50^(@)C`. If the temperature of surroundings is `25^(@)C` then the rate of cooling of the body at `40^(@)C` is