Absorption lines in the spectrum of an object can be produced by a cold, tenuous
ID: 1500290 • Letter: A
Question
Absorption lines in the spectrum of an object can be produced by a cold, tenuous gas between the radiating object (like a star) and the spectrometer. These absorption lines occur due to particular photons being absorbed as they go through the tenuous gas (causing the electrons in the atoms to be excited to higher energy levels). How do you expect the wavelengths of these absorption lines to compare to the wavelength of emitted photons this same gas would emit if the gas were hot?
The wavelengths of the absorption lines would be smaller than the wavelengths of the emission lines
The wavelengths of the absorption lines would be longer than the wavelengths of the emission lines
The wavelengths are the same
1.The wavelengths of the absorption lines would be smaller than the wavelengths of the emission lines
2.The wavelengths of the absorption lines would be longer than the wavelengths of the emission lines
3.The wavelengths are the same
Explanation / Answer
A gas absorbs the same wavelengths of light that it emits.