MDCAT Physics MCQ #3997

A string fixed at both ends vibrates in its third harmonic at 120 Hz. What is its fundamental frequency?

MDCAT Physics MCQ #3997

  1. Question 1

    Q1. A string fixed at both ends vibrates in its third harmonic at 120 Hz. What is its fundamental frequency?

    • A) 40 Hz
    • B) 60 Hz
    • C) 80 Hz
    • D) 120 Hz

    Answer: 40 Hz

    Explanation: Third harmonic is 3f₀. Option B divides by 2 instead of 3.