engineering physics MCQ #315

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

engineering physics MCQ #315

  1. Question 1

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

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

    Answer: 6

    Explanation: Using the formula for spectral lines, N = n(n-1)/2, for n = 4, N = 6.