If $\varepsilon_0$ is permittivity of free space, $e$ is charge of proton, $G$ is universal gravitational constant and $m_p$ is mass of a proton then the dimensional formula for $\frac{e^2}{4 \pi \varepsilon_0 G m_p{ }^2}$ is
$\left[ M ^1 L ^1 T ^{-3} A ^{-1}\right]$
$\left[ M ^0 L ^0 T ^0 A ^0\right]$
$\left[ M ^1 L ^3 T ^{-3} A ^{-1}\right]$
$\left[ M ^{-1} L ^{-3} T ^4 A ^2\right]$
In a new system of units energy $(E)$, density $(d)$ and power $(P)$ are taken as fundamental units, then the dimensional formula of universal gravitational constant $G$ will be .......
The dimensions of $RC$ is
($C$ and $R$ represent capacitance and resistance respectively)
The dimensions of pressure are
The dimensional formula of angular impulse is:
Consider following statements
$(A)$ Any physical quantity have more than one unit
$(B)$ Any physical quantity have only one dimensional formula
$(C)$ More than one physical quantities may have same dimension
$(D)$ We can add and subtract only those expression having same dimension
Number of correct statement is