Thermal Properties of Matter - Result Question 26
27. A black body at radiates heat at the rate of . At a temperature of , the rate of heat radiated in the same units will be:
(a) 50
(b) 112
(c) 80
(d) 60
[2009]
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Answer:
Correct Answer: 27. (b)
Solution:
- (b) According to Stefan’s law
,