Transmission Of Heat Question 5
Question: Assertion : Bodies radiate heat at all temperatures. Reason : Rate of radiation of heat is proportional to the fourth power of absolute temperature.
[AIIMS 1999, 2002]
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: E
Solution:
Assertion is false because at absolute zero (0 K), heat is neither radiates nor absorbed. Reason is the statement of Stefan’s law, as $ E\propto T^{4}. $
BETA
