Exam-style question
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What is the significance of the area under a black-body radiation curve?.
- A.It indicates the total energy emitted by the body
- B.It shows the temperature of the body
- C.It represents the mass of the body
- D.It determines the color of the emitted light
Model answer
What a good answer should say
- It indicates the total energy emitted by the body
Explanation
Why this works
The area under the black-body radiation curve corresponds to the total energy emitted per unit time by the black body, which is related to its temperature and follows the Stefan-Boltzmann law.
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