cut off wavelength definition for lionight absorpt

Mercury How many spectral lines are there? Which element has the most spectral lines? If a gas is heated to the point where it glows, the resulting spectrum has light at discrete wavelengths that turn out to match the wavelengths of missing light in stellar spectra. The wavelengths that get absorbed depend on the chemical make up of the gas in the stellar atmosphere.

Why do absorption and emission lines match? These lines came to be known as ‘spectral lines’ and were cataloged by heating common elements until they produced light and measuring the wavelengths emitted. When light passes through gas in the atmosphere some of the light at particular wavelengths is scattered resulting in darker bands. How are spectral lines both emission and absorption formed?

Because the atom can only absorb specific amounts of energy, only certain wavelengths of light will be absorbed. This has a profound effect on the absorption and emission spectra of an element. Do elements emit at the same wavelengths they absorb?Ībsorption and Emission The electron absorbs the energy and jumps to a higher energy level. Why do atoms absorb only electromagnetic energy of a particular wavelength? Thus, each spectral line corresponds to one particular transition between energy states of the atoms of a particular element. Those same wavelengths appear in emission when the gas is observed at an angle with respect to the radiation source. Why do lines in emission and absorption spectra appear at the same wavelength?

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Which of the following defines intensity?.

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What are the factors affecting intensity of spectral lines?.

What do you mean by intensity of spectral lines?.

Which element has the most spectral lines?.

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Why do absorption and emission lines match?.

How are spectral lines both emission and absorption formed?.

Do elements emit at the same wavelengths they absorb?.

Why do lines in emission and absorption spectra appear at the same wavelength?.

Cut off wavelength definition for lionight absorpt