Answer:
The rate at which it will radiate heat is closest to 127.2J.
Explanation:
According to Stefan's law, the heat radiated by a black body can be written as:
is directly proprtional to the
.
where H is the amount of heat radiated and T is the surface temperature .
<u>Example</u> : The heat is transferred by radiation and an example of heat transferred by radiation is the sunlight reaching earth from sun.
<u>Note</u> : Here the temperature is expressed in Kelvin.
- Initial rate of heat ,
- Final rate of heat ,
= unknown
- Initial temperature ,
- Final temperature ,
.
The rate at which it will radiate heat is closest to 127.2J.