Two particles $\mathrm{A}$ and $\mathrm{B}$ are in motion. If the wavelength associated with $\mathrm{A}$ is $33.33 \mathrm{nm}$, the wavelength associated with $\mathrm{B}$ whose momentum is $\frac{1}{3}\mathrm{rd}$ of $\mathrm{A}$ is