A proton and an a-particle have the same de-Broglie wavelength. Determine the ratio of
their speeds.

Explanation

To determine the ratio of the speeds of a proton and an alpha particle given that they have the same de-Broglie wavelength, we can follow these steps:

### Step 1: Understand the de-Broglie wavelength formula
The de-Broglie wavelength (\(\lambda\)) is given by the formula:
\[ \lambda = \frac{h}{p} \]
where \(h\) is the Planck's constant and \(p\) is the momentum of the particle.
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