(b) [2.0pt] Show that for an energy threshold E > k,T, the fraction of blackbody photos that have energy hu > E is: 2 n(hv > Eo) Eo ~ 0.42 e-FolkBT ny KT HINT: E = 2chu. Also, the specific (n, ) and bolometric (n, = dun,) 0 density of photons are respectively given by KIT 3 2.4041 KT 3 8 IT 25(3) C3 2ahu ekbT - 1 hc 17 2 hc Remember that E >> k,T