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 H . The rate of cooling at 900 K is

The rate of cooling at 600 K . If surrounding temperature is 300 K is H . 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 cools at the rate of 4^@C per minute when its temperature is 70^@C . What will be its rate of cooling when its temperature is 50^@C ? (Assume temperature of surrounding to be 30^@C )