A liquid cools down from `70^(@)C` to `60^(@)C` in 5 minutes. The time taken to cool it from `60^(@)C` to `50^(@)C` will be

A liquid cools from 70^(@)C to 60^(@)C in 5 minutes. Calculate the time taken by the liquid to cool from 60^(@)C to 50^(@)C , If the temperature of the surrounding is constant at 30^(@)C .

Hot water kept in a beaker placed in a room cools from 70^(@)C to 60° C in 4 minutes . The time taken by it to cool from 69^(@)C to 59^(@)C will be

A body in a room cools from 85^(@)C to 80^(@)C in 5 minutes. Then the time taken to cool from 80^(@)C to 75^(@)C is

A body cools from 80^(@)C to 60^(@)C in 5 minutes. Then its average rate of cooling is

A body cools from 70^(@)C to 60^(@)C in 8minute The same body cools from 60^(@)C to 50^(@)C in .

A body cools down from 65^(@)C to 60^(@)C in 5minutes. It will cool down from 60^(@)C to 55^(@)C in

In a room where the temperature is 30^(@)C , a body cools from 61^(@)C to 59^(@)C in 4 minutes. The time (in min.) taken by the body to cool from 51^(@)C to 49^(@)C will be

A hot water kept in a beaker placed in a room cools from 60^(@)C to 50^(@)C in 8 min. then the time taken by it to cool from 50^(@)C to 40^(@)C is