Modern Physics Introduction Photon Energy and Wavelength

[fallen186]

Homework Statement

Suppose that a beam of light consists of photons having an energy of 5.4 eV. what is the wavelength of the light?

Homework Equations

hc = 1240 eV*nm

E = \frac{hc}{\lambda}

The Attempt at a Solution

5.4eV = \frac{1240eV*nm}{\lambda}

\lambda = \frac{1240ev*nm}{5.4eV}
\lambda = 229.630 nm

 

[ideasrule]

That's correct.