What is the wavelength of peak emission for a black body at 37°C? (c = 3.0 × 10⁸ m/s,Wien displacement law constant is 2.9 × 10^-3 m • K,σ = 5.67 × 10^-8 W/m² • K⁴) A) 94 µm B) 9.4 µm C) 29 µm D) 7.8 µm E) 78 µm

Question

Quizplus · Accepted Answer

We can use Wien's displacement law to determine the wavelength of peak emission:
λ_peak = b/T
where b is the Wien displacement law constant and T is the temperature in Kelvin.
Converting 37°C to Kelvin: 
T = 37°C + 273.15 = 310.15 K
Substituting values: 
λ_peak = (2.9 × 10^-3 m • K) / 310.15 K
λ_peak = 9.39 x 10^-6 m or 9.4 µm
Therefore, the answer is B.

What Is the Wavelength of Peak Emission for a Black