Modern Physics Chapter 2

The ______ catastrophe refers to the discrepancy between observational results and classical physics predictions at shorter wavelengths.

According to Planck's law, the energy of oscillators is quantized, represented by the equation E = nhv, where n is a ______.

In the photoelectric effect, electrons are emitted from a material when it is exposed to light of a certain ______.

Planck proposed that radiation consists of ______, which are massless and uncharged particles.

The Rayleigh-Jeans law accurately describes spectral density for longer wavelengths but fails for ______ wavelengths.

Electric oscillators in a black body radiate energy when their ______ are supplied with sufficient energy.

In the photoelectric effect, increasing the intensity of light results in a greater number of emitted ______, but does not change their energy.

Wein's displacement law states that the wavelength at which the emission of a black body spectrum is maximum is inversely proportional to its ______.

A body that absorbs all the radiation is known as a ______.

Wien's displacement law states that the peak wavelength of black body radiation is ______ proportional to the temperature.

The ______ effect refers to the emission of electrons from a material when it is exposed to light.

Stefan's law states that the total energy emitted per unit surface area per unit time is proportional to the ______ power of temperature.

The phenomenon where classical physics predicted an infinite amount of energy emitted at short wavelengths is known as the ______ catastrophe.

According to Wien's distribution law, the energy density of black body radiation depends on both ______ and temperature.

Planck's law describes the spectral density of ______ emitted by a black body in thermal equilibrium.

The peak spectral irradiance of a black body decreases as the ______ is increased.

According to classical theory, light is considered to be a continuous wave and its energy depends on its ______.

The ______ effect demonstrated that light can eject electrons from a metal surface, but only if the frequency of light is above a certain threshold.

According to ______'s Law, the wavelength of light emitted by a black body is inversely proportional to its temperature.

The ______ catastrophe refers to the failure of classical physics to predict the observed spectrum of radiation emitted by black bodies.

______'s Law quantifies the energy of electromagnetic radiation emitted by a black body in terms of its frequency and temperature.

In the photoelectric effect, even low intensity light can ______ electrons if the frequency is above the threshold.

Arthur Compton's experiment showed that the interaction between X-rays and electrons leads to a change in their ______.

According to classical physics, increasing the ______ of radiation was thought to increase the kinetic energy of emitted electrons.