Transmission Of Heat Question 200

Question: The amount of radiation emitted by a perfectly black body is proportional to

[AFMC 1995; Pb. PMT 1997; CPMT 1974, 98, 02; AIIMS 2000; DPMT 1995, 98, 02]

Options:

A) Temperature on ideal gas scale

B) Fourth root of temperature on ideal gas scale

C) Fourth power of temperature on ideal gas scale

D) Source of temperature on ideal gas scale

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Answer:

Correct Answer: C

Solution:

$ E\propto T^{4} $ (Stefan’s law)