Exam-style question
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How does temperature affect the peak wavelength of black-body radiation?.
- A.Higher temperature results in longer peak wavelengths
- B.Higher temperature results in shorter peak wavelengths
- C.Temperature has no effect on peak wavelength
- D.Peak wavelength is constant regardless of temperature
Model answer
What a good answer should say
- Higher temperature results in shorter peak wavelengths
Explanation
Why this works
According to Wien's law, the peak wavelength of radiation emitted by a black body is inversely proportional to its absolute temperature. Thus, as temperature increases, the peak wavelength decreases.
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