A metal sphere cools from `72^(@)C` to `60^(@)C` in 10 minutes. If the surroundings temperature is `36^(@)C`, then the time taken by it to cool from `60^(@)C` to `52^(@)C` is

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

A liquid cools from 70^(@) C to 60^(@) C in 5 minutes. If the temperautre of the surrounding is 30^(@) C, what is the time taken by the liquid to cool from 50^(@) C to 40^(@) C ?

A body cools from 50^(@)C to 40^(@)C in 5 min. The surroundings temperature is 20^(@)C . In what further times (in minutes) will it cool to 30^(@)C ?

A body cools from 50^(@)C to 40^(@)C in 5 min. The surroundings temperature is 20^(@)C . In what further times (in minutes) will it cool to 30^(@)C ?

A body takes 5 minutes to cool from 90^(@)C to 60^(@)C . If the temperature of the surroundings is 20^(@)C , the time taken by it to cool from 60^(@)C to 30^(@)C will be.

A body takes T minutes to cool from 62^@C to 61^@C when the surrounding temperature is 30^@C . The time taken by the body to cool from 46^@C to 45.5^@C is

A body takes T minutes to cool from 62^@C to 61^@C when the surrounding temperature is 30^@C . The time taken by the body to cool from 46^@C to 45^@C is