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kmp
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why sodium has two lines D1 and D2 ?
The wavelength of sodium light is approximately 589 nanometers.
The wavelength of sodium light is important because it is commonly used in spectroscopy and as a standard for measuring other wavelengths.
The wavelength of sodium light is determined by the energy levels of the electrons in a sodium atom. When excited, these electrons emit light at a specific wavelength.
The doublet in the sodium light spectrum refers to the two closely spaced lines at 589.0 and 589.6 nanometers. This doublet is important in spectroscopy as it helps identify the presence of sodium in a sample.
The wavelength of sodium light cannot be changed in a vacuum, but it can be affected by factors such as temperature and pressure. These changes can cause a slight shift in the wavelength of the light emitted by sodium atoms.