Question
Download Solution PDFEvery object emits radiation. The radiation energy is proportional to what power of temperature?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- In the world, all objects emit radiation if they have a temperature greater than absolute zero ( 0K ).
- And this radiation energy (Q) is proportional to fourth the power of Temperature (T) in Kelvin.
i.e. Q α T4 or mathematically Q = σAT4
where σ is Stefan-Boltzmann constant and A is the area from which radiation is emitted.
EXPLANATION:
- All objects in this world which have a temperature greater than 0 K, emit radiation.
- This radiation energy is proportional to fourth the power of Temperature (T) in Kelvin.
Q α T4
- So, the correct answer is option 4.
- An object that absorbs and emits all possible radiation with 100% is called a blackbody.
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