An electron and a photon have the same de Broglie wavelength. Which one of these has higher kinetic energy?

Explanation

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

### Step 1: Understand the de Broglie wavelength
The de Broglie wavelength (\( \lambda \)) is given by the formula:
\[ \lambda = \frac{h}{mv} \]
where \( h \) is Planck's constant, \( m \) is the mass of the particle, and \( v \) is its velocity.
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