: (*)-(2) Find pressure 8. 45 1. For Photon gas given that for phonon gas and discuss and compare it with classical idea
Posted: Wed May 18, 2022 5:05 pm
- 2 Find Pressure 8 45 1 For Photon Gas Given That For Phonon Gas And Discuss And Compare It With Classical Idea 1 (16.02 KiB) Viewed 42 times
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2. Show that the variation of Black body energy density at large wavelength approaches to Rayleigh-Jeans Law and follows Wein;s Law as a → 0. 3. Expression for Debye specific heat is Cv = (9N/x,')F(X) = 9Nk(1/0)' F(0./T).
hwr 4. In the Einstein approximation U = 30e - 30{17cm. 10+ (exp(hw/kT) - 1] Find Cv and approximate it for very high and very low Temperature.