Calculate the
(a) momentum and
(b) The de Broglie wavelength of the electrons accelerated through a potential difference of 56 V.

Explanation

To solve the problem, we will follow these steps:

### Part (a): Calculate the Momentum of the Electron

1. **Understand the Work-Energy Principle**: When an electron is accelerated through a potential difference (V), the work done on the electron is converted into kinetic energy. The work done (W) can be expressed as:
\[ W = qV \]
...