Linear Mass Density: Increasing its numerator

[SaintJude]

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Which of the following would increase the linear mass density of a string, while maintaining its original length:

using a heavier string -- yes
using a thicker string?
using a denser string?

 

[shoehornlettuce]

Which of the following would increase the linear mass density of a string, while maintaining its original length:

using a heavier string -- yes
using a thicker string?
using a denser string?

Linear density would be mass per unit length so units will be kg/m. Using a heavier string (assuming the dimensions of the string remain the same) will cause it to increase because you increases the numerator (kg) without changing the denominator (m). Using a thicker string should increase it because again, you will have more string per unit length. Assuming the dimensions of the string remain the same, using a denser string should also increase it for the same reasons as above.