CUET · PHYSICS · PYQ PAPER 2025
The energy required to remove an electron from the inner most orbit of the hydrogen atom to a distance far away from its nucleus is
- A \(-13.6 eV\)
- B \(13.6 eV\)
- C \(3.4 eV\)
- D \(0 eV\)
Answer & Solution
Correct Answer
(B) \(13.6 eV\)
Step-by-step Solution
Detailed explanation
\(E_n = -13.6 \frac{Z^2}{n^2} \) \(E_{required} = -E_1 = -(-13.6 \frac{1^2}{1^2}) \) \(E_{required} = 13.6 eV \)
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