87hv 1 dv c exp(hv/kT)–1 u(v)dv = %D

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Question 5(i): Statistical Mechanics
5 The energy density of radiation per unit frequency interval u(v) for black-body radiation is
described by Planck's formula/radiation law.
(i)
Show that Planck's radiation law is given by:
8hv
1
u(v)dv :
-dv
c' exp(hv/kT)-1
Transcribed Image Text:5 The energy density of radiation per unit frequency interval u(v) for black-body radiation is described by Planck's formula/radiation law. (i) Show that Planck's radiation law is given by: 8hv 1 u(v)dv : -dv c' exp(hv/kT)-1
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