Transmission Of Heat Question 9

If the temperature of a star is doubled then the rate of loss of heat from it becomes 16 times. Reason : Stefan-Boltzmann law states that the power radiated by a star is proportional to the fourth power of its temperature.

[AIIMS 1996]

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 are both false.

E) If assertion is false but reason is true.

Show Answer

Answer:

Correct Answer: B

Solution:

This is in accordance with the Stefan’s law $ E\propto T^{4} $ .



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