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Q: Is it true that a low density gas must be hot in order to produce an absorption line?
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What is an absorption line?

An absorption line is a line which corresponds to the absorption of electromagnetic radiation at a specific wavelength.


Is an absorption spectrum also called a bright line spectrum?

No, its an absorption spectrum


The spectrum produced by glowing high-density gas is an a bright line emission b dark line absorption c chemical composition d temperature c continuous?

a Edit: The question is very mixed up, but I think I get the idea. It's obviously an emission spectrum. Because it is a high density gas the spectrum should be CONTINUOUS.


What frequency corresponds to an Absorption line at 527?

5.69 × 1014 Hz


What is a BAL?

A BAL is an abbreviation for a broad absorption line, found in astrophysics.


What frequency corresponds to an absorption line at 460?

6.52 1014 Hz


The absorption spectrum of argon has a line at 515 nm what is the energy of this line?

3.86 x 10-19 J


What has the author Alastair Mark Reed written?

Alastair Mark Reed has written numerous fantasy novels, such as "Leaf and Flame" and "The Marches of the Mantii." He is known for creating intricate worlds with rich character development and engaging storylines. His works often explore themes of magic, power, and personal growth.


How are slope of the line and density of the material related?

Density is the slope of the line. density = mass/volume = constant. Since mass and volume have a linear relationship, then that constant is also the slope of the line on a graph of a comparison of mass to volume ratios.


What is resonance line of atomic absorption spectroscopy?

Atomic absorption spectrometry is the measurement of the absorption of optical radiation by atoms in the gaseous state. Usually only absorptions involving the ground state, known as resonance lines, are observed.


How can you Distinguish absorption spectrum from emission spectrum?

Emission spectra are bright-line spectra, absorption spectra are dark-line spectra. That is: an emission spectrum is a series of bright lines on a dark background. An absorption spectrum is a series of dark lines on a normal spectrum (rainbow) background.


What transition energy corresponds to an absorption line at NM?

3.96 10-19 j