engineering physics MCQ #473

The velocity of the electron in the nth orbit is given by vn = 2.2 × 10⁶ / n m/s. What is the velocity of the electron in the 2nd orbit?

engineering physics MCQ #473

  1. Question 1

    Q1. The velocity of the electron in the nth orbit is given by vn = 2.2 × 10⁶ / n m/s. What is the velocity of the electron in the 2nd orbit?

    • A) 1.1 × 10⁶ m/s
    • B) 2.2 × 10⁶ m/s
    • C) 1.1 × 10⁷ m/s
    • D) 2.2 × 10⁷ m/s

    Answer: 1.1 × 10⁶ m/s

    Explanation: Substitute n = 2 in vn = 2.2 × 10⁶ / n m/s to get v2 = 2.2 × 10⁶ / 2 = 1.1 × 10⁶ m/s.