engineering physics MCQ #538

The number of spectral lines emitted by hydrogen atom when an electron jumps from n = 4 to n = 1 is

engineering physics MCQ #538

  1. Question 1

    Q1. The number of spectral lines emitted by hydrogen atom when an electron jumps from n = 4 to n = 1 is

    • A) 4
    • B) 6
    • C) 8
    • D) 10

    Answer: 6

    Explanation: Use the formula for the number of spectral lines: n(n-1)/2, where n is the difference between the two levels. Here, it's 4C2 = 6.