Dust that is heated to 30 K will emit a blackbody spectrum that peaks at:

Name: Dust that is heated to 30 K will emit a blackbody spectrum that peaks at:
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Quizplus · Accepted Answer

According to Wien's Law, the peak wavelength (λ_max) is inversely proportional to the temperature (T) of the blackbody: λ_max = b/T, where b is Wien's constant (approximately 2898 μm·K). For T = 30 K, λ_max = 2898 μm·K / 30 K ≈ 96.6 μm, which is closest to 100 μm.

Dust That Is Heated to 30 K Will Emit a Blackbody