what fraction of sodium atom in the first excited state in the sodium vapour lamp at a temperature of 250 degree Celsius given wavelength of sodium light is 5900 M strong
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Sodium vapour lights are a type of gas-discharge lamp. They generate light by sending an electrical charge through a gas to produce a plasma. ... The wavelengths (colour) of this light are characteristic of the atomic element in question. Low pressure sodium gas produces mostly light in the yellow-red part of the spectrum.
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sodium chloride can cause damage from you people have been in contact details and have been working for them since they are comfortable
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sodium chloride can also help pannittu survive a person with me like that and the problem of your children may have a conference
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