Which of the following is dimensionally correct
Pressure = Energy per unit area
Pressure = Energy per unit volume
Pressure = Force per unit volume
Pressure = Momentum per unit volume per unit time
Two quantities $A$ and $B$ have different dimensions. Which mathematical operation given below is physically meaningful
The dimensions of universal gravitational constant are
What is the dimensions of impedance?
Of the following quantities, which one has dimensions different from the remaining three
Given below are two statements :
Statement $(I)$ : Dimensions of specific heat is $\left[\mathrm{L}^2 \mathrm{~T}^{-2} \mathrm{~K}^{-1}\right]$
Statement $(II)$ : Dimensions of gas constant is $\left[\mathrm{ML}^2 \mathrm{~T}^{-1} \mathrm{~K}^{-1}\right]$