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 solve the problem of how the kinetic energies of an electron and an alpha particle are related when they have the same de Broglie wavelength, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding de Broglie Wavelength**:
The de Broglie wavelength (\( \lambda \)) is given by the formula:
\[
\lambda = \frac{h}{p}
...