engineering physics MCQ #414

The frequency of the radiation emitted when an electron jumps from n = 3 to n = 1 is

engineering physics MCQ #414

  1. Question 1

    Q1. The frequency of the radiation emitted when an electron jumps from n = 3 to n = 1 is

    • A) 2.92 * 10¹⁵ Hz
    • B) 2.46 * 10¹⁵ Hz
    • C) 3.08 * 10¹⁵ Hz
    • D) 1.89 * 10¹⁵ Hz

    Answer: 2.46 * 10¹⁵ Hz

    Explanation: ΔE = hf = -13.6 * (1 - 1/9), f = ΔE / h = 2.46 * 10¹⁵ Hz.