Find the initial momentum of electron if the momentum of electron is changed by `p_(m)` and the De Brogile wavelength associated with it changed by `0.50%`

Explanation

To find the initial momentum of the electron given that the momentum changes by \( p_m \) and the de Broglie wavelength changes by 0.50%, we can follow these steps:

### Step 1: Understand the relationship between momentum and de Broglie wavelength
The de Broglie wavelength \( \lambda \) is given by the formula:
\[ \lambda = \frac{h}{p} \]
where \( h \) is Planck's constant and \( p \) is the momentum. This implies that the wavelength is inversely proportional to the momentum.
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