Modern Physics Introduction Photon Energy and Wavelength

Thread starter fallen186
Start date Apr 26, 2011
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Energy Introduction Modern physics Photon Physics Wavelength

AI Thread Summary

A beam of light with photons having an energy of 5.4 eV corresponds to a wavelength calculation using the equation E = hc/λ. By substituting the values into the formula, the wavelength is determined to be approximately 229.630 nm. The calculation confirms that this result is correct. The discussion emphasizes the relationship between photon energy and wavelength in modern physics. Understanding these concepts is crucial for solving related problems in quantum mechanics.

Apr 26, 2011

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

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Apr 26, 2011

ideasrule

Homework Helper

That's correct.

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