[" Example "-05:],[" A body at "50^(@)C" cools in "],[" surroundings at "30^(@)C." At what "],[" temperature will its rate of cooling "],[" be half that at the beginning? "]

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 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 begining is

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 body is heated to a temperature of 75^(@)C and is allowed to cool. If the temperature of the surrounding is 35^(@)C , then the temperature at which the rate of cooling will be exactly half of that initially will be

A body cools from 70^(@)C to 50^(@)C in 5minutes Temperature of surroundings is 20^(@)C Its temperature after next 10 minutes is .

A body cools from 70^(@)C to 50^(@)C in 5 minutes. Temperature of surroundings is 20^(@)C . Its temperature after next 10 minutes is

A body initially at 80^(@)C cools to 64^(@)C in 5 minutes and to 52^(@)C in 10 minutes. What is the temperature of the surroundings?

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 50C to 40C in 5min .The surroundings temperature is 20C .In what further time (in minutes) will it cool to 30C