Continued The Plank Distribution Eba C lecstar C1=3.742*108w:4m4/m2 C2=1.438*104um·K Whenλ=const T1一EAb↑Continued  The Plank Distribution [ 1] 5 / 1 2 − = b C T e C E λ λ λ C m K C w m m = ⋅ = ⋅ μ μ 4 2 8 4 2 1 1.438 *10 3.742 *10 / When λ=const T Eλ,b