The ionisation energy of H atom is `13.6 eV. `What will be the ionisation energy of `He^(o+)` and `Li^(2+)` ions ?

Explanation

To find the ionization energies of the He\(^+\) and Li\(^{2+}\) ions based on the given ionization energy of the hydrogen atom (H), which is 13.6 eV, we can use the formula derived from Bohr's model of the atom.

### Step-by-Step Solution:

1. **Understanding Ionization Energy**:
Ionization energy is the energy required to remove an electron from an atom or ion. For hydrogen, the ionization energy is given as 13.6 eV.

2. **Bohr's Model Formula**:
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