Based on what you learned about stellar spectra, select all of the correct statements from the following list. a. Every single star has a unique spectrum. b. Atoms can absorb or emit any amount of energy. c. Stellar spectra are absorption spectra. d. Balmer lines tend to be strong in all stellar spectra. e. For stars within our galaxy, the Lyman and Paschen series of the hydrogen spectrum are not visible. f. Spectra can reveal the chemical composition of stars.Doppler shifts in spectral lines give clues to the motions of stars.
Based on what you learned about stellar spectra, select all of the correct statements from the following list.
(a) False.
Atoms have their own characteristic set of energy levels, each associated with a unique pattern of spectral lines. It allows identifying elements present in the stars and clouds. But a single star has no unique spectrum.
(b) False.
Any amount of energy cannot be absorbed or emitted by atoms. A discrete quantities of energy involved, but not continuously. when electrons jump to higher energy levels they absorb light. When they return to lower energy levels, they emit energy as a photon of light.
(c) True.
Stars have absorption line spectra. The wavelengths that get absorbed depend on the chemical moieties present in the stellar atmosphere.
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