Answer
$1=2>3$
Work Step by Step
We know that;
$\omega = kv$
We also know that:
$k=\frac{2\pi}{\lambda}$
Combining the two equations;
$\omega=\frac{2\pi v}{\lambda}$
Since all waves have the same speeds, as the wavelength increases, angular frequency decreases. Therefore, the order from greatest to least, referring to their angular frequencies, is $1=2>3$. (It is the opposite of the order from greatest to least according to wavelength, which is $3>1=2$.)
