A nucleus of mass M at rest splits into two parts having masses (M^′)/3 and (2 M^′)/3(M^′<M). The ratio of de Broglie wavelength of two parts will be:

A nucleus of mass M at rest splits into two parts having masses $\displaystyle \frac{M^{\prime}}{3}$ and $\displaystyle \frac{2 M^{\prime}}{3}\left(M^{\prime}<M\right)$. The ratio of de Broglie wavelength of two parts will be :