Electromegnetic radiation of wavelength `500` nm is just safficient to ionic a sodium atom .Calculate the energy corresponding to this wavelength the ionisation potential of Na

Explanation

To solve the problem of calculating the energy corresponding to the wavelength of electromagnetic radiation that can ionize a sodium atom, we will follow these steps:

### Step 1: Convert the wavelength from nanometers to meters
Given that the wavelength (λ) is 500 nm, we need to convert this to meters.

\[ \lambda = 500 \, \text{nm} = 500 \times 10^{-9} \, \text{m} = 5 \times 10^{-7} \, \text{m} \]
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