A dimensionless quantity is constructed in terms of electronic charge $e$, permittivity of free space $\varepsilon_0$, Planck's constant $h$, and speed of light $c$. If the dimensionless quantity is written as $e^\alpha \varepsilon_0^\beta h^7 c^5$ and $n$ is a non-zero integer, then $(\alpha, \beta, \gamma, \delta)$ is given by
$(2 n,-n,-n,-n)$
$(n,-n,-2 n,-n)$
$(n,-n,-n,-2 n)$
$(2 n,-n,-2 n,-2 n)$
Even if a physical quantity depends upon three quantities, out of which two are dimensionally same, then the formula cannot be derived by the method of dimensions. This statement
If the formula, $X=3 Y Z^{2}, X$ and $Z$ have dimensions of capacitance and magnetic induction. The dimensions of $Y$ in $M K S Q$ system are
Frequency is the function of density $(\rho )$, length $(a)$ and surface tension $(T)$. Then its value is
What is Dimensional Analysis ? State uses of Dimensional Analysis.