If the radius of a nucleus `""^(256)X` is 8 fermi, then the radius (in fermi) of `""^(4)He` nucleus will be

Explanation

To find the radius of the helium nucleus given the radius of a nucleus with mass number 256, we can use the formula for the radius of a nucleus, which is given by:

\[ R = R_0 A^{1/3} \]

where:
- \( R \) is the radius of the nucleus,
- \( R_0 \) is a constant (approximately 1.2 to 1.3 fermi),
- \( A \) is the mass number (number of nucleons).
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