A mechanical oscillator drives a transverse wave along a string of linear mass density μ=4.0×10−3kg/m under a tension of 80N. The oscillator operates at 120Hz.
If the tension is increased to 200N while the driving frequency remains unchanged, what will be the new wavelength on the string?
(a) 1.2m
(b) 1.9m
(c) 0.74m
(d) 3.0m