A thin metal wire of length 1.20 m is clamped firmly at both ends. Stationary waves are set up on the wire when it is driven by an external vibrator.

Which statement is not correct?
The wavelength of the first harmonic is 2.40 m2.40\text{ m}2.40 m.
The midpoint of the wire behaves as an antinode for all odd-numbered harmonics.
A stationary wave with a wavelength of 0.32 m0.32\text{ m}0.32 m can be set up on the wire.
There are exactly five nodes along the wire for the fourth harmonic.