Units and Measu...

Of the four figures given below, $$x_0$$ is known value of the outcome in an experiment. Which of the following data plot a precise but not an accurate measurement?

The dimensions of $$ \dfrac {L}{RCV} $$ ($$ L= $$ inductance, $$ R= $$ resistance, $$ C= $$ capacitance, $$ V= $$ potential difference) are

The dimensions of $$ (h/e) [h= $$ Planck's constant, $$ e= electronic \   charge] $$ are same as that of 

The dimension of the expression $$ \dfrac { 1 }{ MB }  $$ is

The dimensions of $$ \dfrac{{v}^{2}}{\mu g} $$ where $$\mu=$$ coefficient of friction, $$v=$$ the velocity, $$g=$$ acceleration due to gravity is same as that of

The dimensional formula for magnetic permeability  $$ \mu $$ is

What are the number of significant figures in the measurement $$ 0.0040\times10^{-15}m $$?

The dimensional formula of modulus of rigidity is

If $$L$$ and $$R$$ denote inductance and resistance respectively, then the dimensions of $$L/R$$ are

Area of a square is $$(100\pm 2)m^2$$. Its side is: