Questions
Consider the following statements.
(A) Bodies radiate heat at all temperatures.
(B) Rate of radiation of heat is proportional to the fourth power of absolute temperature.
a
Both (A) and (B) are true.
b
(A) is true but (B) is false.
c
(A) is false but (B) is true.
d
Both (A) and (B) are false.
detailed solution
Correct option is A
Both A and B are true and according to Prevost's theory of heat exchange heat is always exchanged with the surroundings and according to Stefan's law heat radiation is directly proportional to the fourth power of its absolute temperature.Talk to our academic expert!
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