PHYSICS HELP? please?

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  • Ash
    Lv 7
    1 month ago

    For open cylinder harmonic frequency, fo₁ = V(sound)/ 2L₁

    3rd harmonic, fo₃ = 3*fo₁ = 3V(sound)/ 2L₁

    For closed cylinder harmonic frequency, fc₁ = V(sound)/ 4L ₂

    Given fo₃ = fc₁

    3V(sound)/ 2L₁ = V(sound)/ 4L ₂

    3/L₁ = 1/2L ₂

    L₁/L ₂ = 6

    a) L₁:L ₂ = 6:1

    b) fo₂ = V(sound)/ L₁

    L₁ = V(sound)/fo₂ = (330 m/s) / (270 Hz) ≈ 1.2 m

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