A body cools from `100^(@)C` to `70^(@)C` in 8 second. If the room temperature
Channel: Doubtnut
Date: 2020-05-31

A body cools from `100^(@)C` to `70^(@)C` in 8 second. If the room temperature is `15^(@)C`, and assuming that Newton's law of cooling holds good, then time required for the body to cool from `70^(@)C` to `40^(@)C` is