I need to make sure my method and the formula I have used is correct. Also, my answer for the wavelength seems slightly dodgy. :uhh:(adsbygoogle = window.adsbygoogle || []).push({});

1. The problem statement, all variables and given/known data

An electron recombines with a hole losing 2.6eV of electrical potential energy. Calculate the wavelength of the light emitted.

2. Relevant equations

Not given. Equations have to be used ourself.

3. The attempt at a solution

[itex]E = \frac{hc}{\lambda}[/itex]

[itex]\lambda = \frac{hc}{E}[/itex]

[itex]\lambda = \frac{(6.63 \times 10^{-34})(3.00 \times 10^8)}{2.6}[/itex]

[itex]\lambda = 7.65 \times 10^{-26}m[/itex]

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# Homework Help: Wavelength, Electron

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