An electron beam can undergo defraction by crystals .Through what potential should a beam of electrons beb acceleration so that its wavelength becomkes equal to `1.54 Å`

Explanation

To solve the problem of determining the potential through which a beam of electrons should be accelerated so that its wavelength becomes equal to \(1.54 \, \text{Å}\), we can follow these steps:

### Step 1: Convert Wavelength from Angstroms to Meters
Given that \(1 \, \text{Å} = 10^{-10} \, \text{m}\), we can convert the wavelength:
\[ \lambda = 1.54 \, \text{Å} = 1.54 \times 10^{-10} \, \text{m} \]

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