In the absorption spectrum of Na,the missing | vedclass

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(C) The absorption spectrum of sodium $(Na)$ vapor shows dark lines at specific wavelengths corresponding to the emission lines of sodium.These are kn

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Both

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(C) The absorption spectrum of sodium $(Na)$ vapor shows dark lines at specific wavelengths corresponding to the emission lines of sodium.These are known as the $D_1$ and $D_2$ lines of sodium.The wavelengths of these two prominent lines are approximately $589.0 \, nm$ and $589.6 \, nm$.Since both of these wavelengths are absorbed by the sodium vapor,both are missing in the absorption spectrum.Therefore,the correct option is $C$.

In the absorption spectrum of $Na$,the missing wavelength$(s)$ are:

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