What Is Uv Catastrophe

The ultraviolet catastrophe also called the rayleighjeans catastrophe was the prediction of late 19th centuryearly 20th century classical physics that an ideal black body at thermal equilibrium will emit radiation in all frequency ranges emitting more energy as the frequency increases.

Cat dog logo cartoon. A black body is an idealized object which absorbs and emits all frequencies. The ultraviolet catastrophe also called the rayleigh jeans catastrophe was a prediction of early 20th century classical physics that an ideal black body at thermal equilibrium will emit radiation with infinite power. The word ultraviolet refers to the fact that the problem.

It refers to an object or system which absorbs all radiation incident upon it and re radiates energy which is characteristic of this radiating. The term ultraviolet catastrophe was first used in 1911 by paul ehrenfest although the concept goes back to 1905. Classical physics can be used to derive an equation which describes the intensity of blackbody radiation as a function of frequency for a fixed temperature the result is known as the rayleigh jeans law.

An ideal black body at thermal equilibrium emits radiation in all frequency ranges. By calculating the total amount of radiated energy it can be shown that a blackbody would release an infinite amount of energy. Similarly as for the plancks law the rayleigh jeans law gives the spectral radiance of a body as a function of frequency n at absolute temperature t.

Before the plancks hypothesis physicists tried to describe spectral radiance of electromagnetic radiation by classical physicsthe approximation based on classical physsics is known as the rayleigh jeans law. Later on rayleigh and jeans then produced a formula by considering the radiation within the black body. At long wavelengths wilhelm wien theory disagreed with experimental data.

The ultraviolet catastrophe a blackbody is an idealized object which absorbs and emits all frequencies. The term ultraviolet catastrophe was first used in 1911 by paul ehrenfest1. It emits more energy as the frequency increases.