I would appreciate it if you explained how or why you know what a statement is true or false. I would really like to learn, not just get the right answers.
If the length increases, the pitch increases F/T
Only certain wavelengths can exist on the string F/T
The largest wavelength that can exist on the string is L F/T
If the mass increases, the pitch decreases F/T
If the tension increases, the pitch decreases F/T