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Match the Physical Law or Activity Below with the Observable

Question 50

Matching

Match the physical law or activity below with the observable effect it produces.

Premises:
Each atom absorbs or emits a set of photon wavelengths unique to its element type.
The wavelength of maximum intensity depends on the surface temperature of the star.
An excited atom in which an electron is raised to a higher orbit.
The energy output of a surface is proportional to the temperature of the surface.
The apparent change in the wavelength of a photon from a source caused by the relative motion of the source and the observer.
Responses:
the Stefan-Boltzmann law
agitation and collision of atoms
the Doppler effect
electron motion between energy levels
Wien's Law

Correct Answer:

Each atom absorbs or emits a set of photon wavelengths unique to its element type.
The wavelength of maximum intensity depends on the surface temperature of the star.
An excited atom in which an electron is raised to a higher orbit.
The energy output of a surface is proportional to the temperature of the surface.
The apparent change in the wavelength of a photon from a source caused by the relative motion of the source and the observer.
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