Determine the de Broglie wavelength of a proton, whose kinetice energy is equal to the rest of the mass energy of an electron. Given that the mass of an electron is `9xx10^(-31)` kg and the mass of a proton is `1837` times as that of the electron.

Explanation

To determine the de Broglie wavelength of a proton whose kinetic energy is equal to the rest mass energy of an electron, we can follow these steps:

### Step 1: Identify the given values
- Mass of an electron, \( m_e = 9 \times 10^{-31} \, \text{kg} \)
- Mass of a proton, \( m_p = 1837 \times m_e \)
- Speed of light, \( c = 3 \times 10^8 \, \text{m/s} \)

### Step 2: Calculate the rest mass energy of the electron
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