Question
Physics Question on Wave optics
The ultraviolet catastrophe in the classical (Rayleigh-Jeans) theory of cavity radiation is attributed to the assumption that
A
the standing waves of all allowed frequencies in the cavity have the same average energy
B
the density of the standing waves in the cavity is independent of the shape and size of the cavity
C
the allowed frequencies of the standing waves inside the cavity have no upper limit
D
the number of allowed frequencies for the standing waves in a frequency range v to (v + dv) is proportional to v2
Answer
the standing waves of all allowed frequencies in the cavity have the same average energy
Explanation
Solution
The correct option is (A): the standing waves of all allowed frequencies in the cavity have the same average energy