The dimensions of pressure are equal to

The equation of state of a gas is given by $\left( P + \frac{aT^2}{V} \right) V^c = (RT + b)$,where $a, b, c$ and $R$ are constants. The isotherms can be represented by $P = AV^m - BV^n$,where $A$ and $B$ depend only on temperature. Then:

The diameter and height of a cylinder are measured by a meter scale to be $12.6 \pm 0.1\, cm$ and $34.2 \pm 0.1\, cm$,respectively. What will be the value of its volume in appropriate significant figures?

If $F_1, F_2$,and $F_3$ are the relative strengths of the gravitational,the weak nuclear,and the electromagnetic forces respectively,then

The fundamental unit which has the same power in the dimensional formula of surface tension and viscosity is

Identify the physical quantity that has the unit $N\,m^{-1}\,s^{-2}$.