**Solution:**

The latent heat **L **is defined as,

\(L=\frac Qm\), where Q is the amount of heat and m is the mass.

Dimensional formula of **Q = [ML ^{2}T^{-2}]**

Dimensional formula of **m = [M]**

Hence the dimensional formula of latent heat of a given mass is

\(L=\frac{\left[ML^2T^{-2}\right]}{\left[M\right]}=\left[M^0L^2T^{-2}\right]\)