engineering chemistry MCQ #997

The velocity of an electron in the nth orbit is given by v = 2.188 × 10⁶ / n m/s. What is the velocity of an electron in the 2nd orbit?

engineering chemistry MCQ #997

  1. Question 1

    Q1. The velocity of an electron in the nth orbit is given by v = 2.188 × 10⁶ / n m/s. What is the velocity of an electron in the 2nd orbit?

    • A) 1.094 × 10⁶ m/s
    • B) 2.188 × 10⁶ m/s
    • C) 4.376 × 10⁶ m/s
    • D) 1.094 × 10⁷ m/s

    Answer: 1.094 × 10⁶ m/s

    Explanation: Using v = 2.188 × 10⁶ / n, for n = 2, we get v = 2.188 × 10⁶ / 2 = 1.094 × 10⁶ m/s.