Author Question: A string with a fixed frequency vibrator at one end is undergoing resonance with 4 antinodes when ... (Read 263 times)

sarasara · **on:** Aug 6, 2020

Question 1

A string with a fixed frequency vibrator at one end is subjected to varying tensions. When the tension is 20 N, a resonance with 3 antinodes results. What tension would cause a resonance with 2 antinodes in this string?

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30 N

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45 N

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80 N

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8.9 N

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13 N

Question 2

A string with a fixed frequency vibrator at one end is undergoing resonance with 4 antinodes when under tension T₁. When the tension is slowly increased the resonance condition disappears until tension T₂ is reached, there being no resonances occurring between these two tensions. How many antinodes are there in this new resonance?

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3

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4, since all resonances in this situation have the same number of nodes

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5

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2, since resonances only involve whole wavelengths

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6, since resonances only involve whole wavelength

strudel15 · **Reply #1 on:** Aug 6, 2020

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