Grade Upto college level Engineering Entrance Exams
Radiation emitted by a surface is directly proportional to
(a) Third power of its temperature
(b) Equal to its temperature
(c) Twice power of its temperature
(d) Fourth power of its temperature
sumit kumar
12 Years agoGrade Upto college level
2 Answers
Saurabh Koranglekar
6 Years ago
Dear student
The answer is option d
Regards
Vikas TU
6 Years ago
According to Stefan Boltzmann law, the amount of radiation emitted per unit time from an area A of a black body at absolute temperature T is directly proportional to the fourth power of the temperature. where e = emissivity (which is equal to absorptive power) which lies between 0 to 1.
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