Answer Happy

Posted: **Sun Apr 10, 2022 8:50 am**

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When I(v)dv is the intensity of light emitted from an area
unit of the radiating body In the frequencies range
(v,v+dv)

: 2 (1.8 KiB) Viewed 22 times

1. Show that the expression of the wave power as a function
of the wavelength is:

: 3 (2.23 KiB) Viewed 22 times

when:

: 4 (1.1 KiB) Viewed 22 times

2. Prove Wayne's law and express the Wayne constant using
nature constants only. hint, use :

: 5 (1.21 KiB) Viewed 22 times

3. Prove Stefan Boltzmann's Law. Express the Stefan Boltzmann
constant using nature constants only.

: 6 (3.76 KiB) Viewed 22 times

4. Showed that at low frequencies the Planck formula merges
with the formula of Riley and Jeans according to it:

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2π 27 hy 1(v) = ce c²hvikat 1 ev/ -1
J kg = 1.38-10-23 °K
2πο? I(2)= 2 1 h h helikt e
Radi
x hc х x= kᎢ T
hv (x= KT הדרכה: השתמש בהצבה rdx e" -1 15 0
21k Tv2 I(v) = c?

Answer Happy

2π 27 hy 1(v) = ce c²hvikat 1 ev/ -1 J kg = 1.38-10-23 °K 2πο? I(2)= 2 1 h h helikt e Radi x hc х x= kᎢ T hv (

2π 27 hy 1(v) = ce c²hvikat 1 ev/ -1 J kg = 1.38-10-23 °K 2πο? I(2)= 2 1 h h helikt e Radi x hc х x= kᎢ T hv (