Question

Yellow light emitted from sodium lamp has a wavelength of 580nm .Calculate the frequency of the yellow light in chemistry

Answer 1

Here's the answer.

Hope it will clear your doubt.

Answer 2

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$\huge{\red{\underline{\tt{Answer}}}}$

$\sf The \: wavelength \: of \:yellow \: light \: is \: 580nm = 580 \times 10 ^{-9}m$

$\textbf{The \ frequency \ of \ yellow \ light}$

$\leadsto$ $\sf v = \frac {c}{\lambda}$

$\leadsto$ $\sf \frac {3.0\times 10 }{580 \times 10^{-9}m$

$\leadsto$ $\sf 5.17 \times 10^{14}}$

$\textbf{The \ number \ yellow \ light,}$

$\leadsto$ $\sf \overline{v} = \frac {1}{\lambda}$

$\leadsto$ $\sf \frac {1}{580 \times 10^{-9}}m$

$\leadsto$ $\sf 1.72 \times 10^{6}$

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