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Questions and Answers
The ______ catastrophe refers to the discrepancy between observational results and classical physics predictions at shorter wavelengths.
The ______ catastrophe refers to the discrepancy between observational results and classical physics predictions at shorter wavelengths.
ultraviolet
According to Planck's law, the energy of oscillators is quantized, represented by the equation E = nhv, where n is a ______.
According to Planck's law, the energy of oscillators is quantized, represented by the equation E = nhv, where n is a ______.
quantum number
In the photoelectric effect, electrons are emitted from a material when it is exposed to light of a certain ______.
In the photoelectric effect, electrons are emitted from a material when it is exposed to light of a certain ______.
frequency
Planck proposed that radiation consists of ______, which are massless and uncharged particles.
Planck proposed that radiation consists of ______, which are massless and uncharged particles.
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The Rayleigh-Jeans law accurately describes spectral density for longer wavelengths but fails for ______ wavelengths.
The Rayleigh-Jeans law accurately describes spectral density for longer wavelengths but fails for ______ wavelengths.
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Electric oscillators in a black body radiate energy when their ______ are supplied with sufficient energy.
Electric oscillators in a black body radiate energy when their ______ are supplied with sufficient energy.
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In the photoelectric effect, increasing the intensity of light results in a greater number of emitted ______, but does not change their energy.
In the photoelectric effect, increasing the intensity of light results in a greater number of emitted ______, but does not change their energy.
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Wein's displacement law states that the wavelength at which the emission of a black body spectrum is maximum is inversely proportional to its ______.
Wein's displacement law states that the wavelength at which the emission of a black body spectrum is maximum is inversely proportional to its ______.
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A body that absorbs all the radiation is known as a ______.
A body that absorbs all the radiation is known as a ______.
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Wien's displacement law states that the peak wavelength of black body radiation is ______ proportional to the temperature.
Wien's displacement law states that the peak wavelength of black body radiation is ______ proportional to the temperature.
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The ______ effect refers to the emission of electrons from a material when it is exposed to light.
The ______ effect refers to the emission of electrons from a material when it is exposed to light.
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Stefan's law states that the total energy emitted per unit surface area per unit time is proportional to the ______ power of temperature.
Stefan's law states that the total energy emitted per unit surface area per unit time is proportional to the ______ power of temperature.
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The phenomenon where classical physics predicted an infinite amount of energy emitted at short wavelengths is known as the ______ catastrophe.
The phenomenon where classical physics predicted an infinite amount of energy emitted at short wavelengths is known as the ______ catastrophe.
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According to Wien's distribution law, the energy density of black body radiation depends on both ______ and temperature.
According to Wien's distribution law, the energy density of black body radiation depends on both ______ and temperature.
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Planck's law describes the spectral density of ______ emitted by a black body in thermal equilibrium.
Planck's law describes the spectral density of ______ emitted by a black body in thermal equilibrium.
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The peak spectral irradiance of a black body decreases as the ______ is increased.
The peak spectral irradiance of a black body decreases as the ______ is increased.
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According to classical theory, light is considered to be a continuous wave and its energy depends on its ______.
According to classical theory, light is considered to be a continuous wave and its energy depends on its ______.
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The ______ effect demonstrated that light can eject electrons from a metal surface, but only if the frequency of light is above a certain threshold.
The ______ effect demonstrated that light can eject electrons from a metal surface, but only if the frequency of light is above a certain threshold.
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According to ______'s Law, the wavelength of light emitted by a black body is inversely proportional to its temperature.
According to ______'s Law, the wavelength of light emitted by a black body is inversely proportional to its temperature.
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The ______ catastrophe refers to the failure of classical physics to predict the observed spectrum of radiation emitted by black bodies.
The ______ catastrophe refers to the failure of classical physics to predict the observed spectrum of radiation emitted by black bodies.
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______'s Law quantifies the energy of electromagnetic radiation emitted by a black body in terms of its frequency and temperature.
______'s Law quantifies the energy of electromagnetic radiation emitted by a black body in terms of its frequency and temperature.
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In the photoelectric effect, even low intensity light can ______ electrons if the frequency is above the threshold.
In the photoelectric effect, even low intensity light can ______ electrons if the frequency is above the threshold.
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Arthur Compton's experiment showed that the interaction between X-rays and electrons leads to a change in their ______.
Arthur Compton's experiment showed that the interaction between X-rays and electrons leads to a change in their ______.
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According to classical physics, increasing the ______ of radiation was thought to increase the kinetic energy of emitted electrons.
According to classical physics, increasing the ______ of radiation was thought to increase the kinetic energy of emitted electrons.
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