Mixed

Can black body radiation be explained by classical physics?

Can black body radiation be explained by classical physics?

A blackbody is an idealized object which absorbs and emits all frequencies. 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.

What is the classical prediction of black body radiation?

In classical physics, the predictions were that an ideal blackbody at thermal equilibrium would emit radiation with infinite power. This came from another law, Rayleigh-Jeans Law, that expresses energy as being proportional to .

Why did classical theory fails to explain photoelectric effect?

The photoelectric effect has three important characteristics that cannot be explained by classical physics: (1) the absence of a lag time, (2) the independence of the kinetic energy of photoelectrons on the intensity of incident radiation, and (3) the presence of a cut-off frequency.

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How does classical theory fails to explain photoelectric effect?

What is the blackbody radiation problem?

The ultraviolet catastrophe, also called the Rayleigh–Jeans catastrophe, was the prediction of late 19th century/early 20th century classical physics that an ideal black body at thermal equilibrium would emit unbound quantity of energy as wavelength decreases, corresponding to ultraviolet light.

Why did the wave theory fail to explain it?

Hint: The wave theory of light considers light to be a wave with a certain wavelength, frequency, and speed. According to this, the intensity of the light wave is dependent upon its amplitude. Hence, the wave theory of light cannot explain the photoelectric and Compton effect.

Which theory Cannot be explained by classical?

Explanation: Classical theory states that all free electrons will absorb energy. This theory cannot explain the photo electric effect.