A photon and an electron have the same de Broglie wavelength. Which has greater total energy? Explain

Explanation

To determine which has greater total energy between a photon and an electron that have the same de Broglie wavelength, we can follow these steps:

### Step 1: Write the energy expression for the photon.
The energy \( E_p \) of a photon is given by the equation:
\[ E_p = h \nu \]
where \( h \) is Planck's constant and \( \nu \) is the frequency of the photon. This can also be expressed in terms of wavelength \( \lambda \):
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