The tension in the string is generally provided by weights on a hanger, but whil

Q: The tension in the string is generally provided by weights on a hanger, but whil

a) Tension in the string --- Increases b) Velocity of waves traveling back and forth along a string -------- Increases as V is proportional to sqrt(Tension) c) Number of antinodes ------- Decreases Wavelenght increases so less number of antinodes d) Wavelength of the standing wave on the string. ------ Increases as frequency is constant so wavelength needs to increase proportional to velocity

ID: 1430775 • Letter: T

Question

The tension in the string is generally provided by weights on a hanger, but while experiment with the system you can use your hand to apply extra force. With the frequency fixed, consider pressing down on the hanger (effectively adding extra weight to the hanger) until you reach a different resonance. What would happen to each of the following quantities? State whether it increases, says the same or decreases and why. a) Tension in the string, b) Velocity of waves traveling back and forth along a string, c) Number of antinodes, d) Wavelength of the standing wave on the string.

Explanation / Answer

a) Tension in the string --- Increases
b) Velocity of waves traveling back and forth along a string -------- Increases as V is proportional to sqrt(Tension)
c) Number of antinodes ------- Decreases Wavelenght increases so less number of antinodes
d) Wavelength of the standing wave on the string. ------ Increases as frequency is constant so wavelength needs to increase proportional to velocity

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The tension in the string is generally provided by weights on a hanger, but whil

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