Teaching UP PGT Mock Test Series 2024 Physical Sciences Thermodynamic and Statistical Physics Blackbody Radiation and Planck's Distribution Law
The ultraviolet catastrophe in the classical (Rayleigh Jeans) theory of cavity radiation is attributed to the assumption that
1
the standing waves of all allowed frequencies in the cavity have the same average energy
2
the density of the standing waves in the cavity is independent of the shape and size of the cavity
3
the allowed frequencies of the standing waves inside the cavity have no upper limit
4
the number of allowed frequencies for the standing waves in a frequency range v to (v + dv) is proportional to v2