The rate of cooling at `600 K`. If surrounding temperature is `300 K` is `H`. The rate of cooling at `900 K` is

The rate of cooling at 600 K, if surrounding temperature is 300 K is R. The rate of cooling at 900 K is

The rate of cooling at 600 K, if surrounding temperature is 300 K is R. The rate of cooling at 900 K is

A body cools at the rate of 0.5^(@)C//s when it is 50^(@)C above the surrounding temperature. The rat of cooling at excess temperature of 30^(@)C over the surrounding temperature is

A body cools at the rate 0.50^@C's when it is at 50^@C above the surrounding temperature. Its rate of cooling when it is 30^@C above the same surrounding temperature will be

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 sphere at temperature 600 K is placed in an enviroment to temperature is 200 K . Its cooling rate is H . If its temperature reduced to 400 K then cooling rate in same enviorment will become

A sphere at temperature 600 K is placed in an enviroment to temperature is 200 K . Its cooling rate is H . If its temperature reduced to 400 K then cooling rate in same enviorment will become