to explain qualitatively the typical nature of experimentally observed $N$ dependence of the rotational constant $B$ of the rotor part of the cluster M:He$_N$. Naturally, the question, how exactly superfluidity is related to the said dependence of $B$ is answered with utmost clarity. We hope that this model, when used with simulation techniques on individual cluster, would render results that would agree closely with experiments. This would not only help in improving the model but also for having a clear understanding of the phenomenon. However, we could not take up this task for the want of facilities of computer simulations at our end.

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