An electron and alpha particle have the same de-Broglie wavelength associated with them. How are their kinetic energies related to each other ?

Explanation

To find the relationship between the kinetic energies of an electron and an alpha particle with the same de-Broglie wavelength, we can follow these steps:

### Step 1: Write the de-Broglie wavelength formula
The de-Broglie wavelength (\( \lambda \)) of a particle is given by the formula:
\[ \lambda = \frac{h}{\sqrt{2mK}} \]
where:
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