The work function of sodium metal is `4.41xx10^(-19)J`. If photons of wavelength 300 nm are incident on the metal, the kinetic energy of the ejected electrons will be `(h=6.63xx10^(34)Js,c=3xx10^(8)` m/s ______ `xx10^(-21)`

Explanation

To find the kinetic energy of the ejected electrons when photons of wavelength 300 nm are incident on sodium metal with a work function of \(4.41 \times 10^{-19} \, J\), we can follow these steps:

### Step 1: Convert Wavelength to Meters
The given wavelength is \(300 \, nm\). We need to convert this to meters:
\[ \lambda = 300 \, nm = 300 \times 10^{-9} \, m \]

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