engineering physics MCQ #593

The velocity of the electron in the nth orbit of hydrogen atom is given by v = 2.2 * 10^6 / n m/s. What is the velocity of the electron in the 3rd orbit?

engineering physics MCQ #593

  1. Question 1

    Q1. The velocity of the electron in the nth orbit of hydrogen atom is given by v = 2.2 * 10^6 / n m/s. What is the velocity of the electron in the 3rd orbit?

    • A) 7.33 * 10^5 m/s
    • B) 1.1 * 10^6 m/s
    • C) 2.2 * 10^6 m/s
    • D) 6.6 * 10^5 m/s

    Answer: 7.33 * 10^5 m/s

    Explanation: Substitute n = 3 in the given formula to get v = 2.2 * 10^6 / 3 = 7.33 * 10^5 m/s.