engineering chemistry MCQ #974

The velocity of an electron in the nth orbit is given by v = 2.19 x 10⁶ / n m/s. For n = 2, v will be

engineering chemistry MCQ #974

  1. Question 1

    Q1. The velocity of an electron in the nth orbit is given by v = 2.19 x 10⁶ / n m/s. For n = 2, v will be

    • A) 1.095 x 10⁶ m/s
    • B) 2.19 x 10⁶ m/s
    • C) 4.38 x 10⁶ m/s
    • D) 0.547 x 10⁶ m/s

    Answer: 1.095 x 10⁶ m/s

    Explanation: Substitute n = 2 into v = 2.19 x 10⁶ / n to get v = 1.095 x 10⁶ m/s.