Calculate the accelerating potential that must be imparted to a proton beam to give it an effective wavelength of ` 0. 005 nm`.

Explanation

To calculate the accelerating potential that must be imparted to a proton beam to give it an effective wavelength of \(0.005 \, \text{nm}\), we can follow these steps:

### Step 1: Use the de Broglie wavelength formula
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 of the particle.
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