engineering physics MCQ #366

The ratio of the energies of the first orbit of hydrogen atom and He+ is

engineering physics MCQ #366

  1. Question 1

    Q1. The ratio of the energies of the first orbit of hydrogen atom and He+ is

    • A) 1 / 4
    • B) 1 / 2
    • C) 2 / 1
    • D) 4 / 1

    Answer: 1 / 4

    Explanation: Energy ∝ Z², so the ratio is (1 / 2)² = 1 / 4.