$A, B, C$ and $D$ are four different physical quantities having different dimensions. None of them is dimensionless. But we know that the equation $AD = C\, ln\, (BD)$ holds true. Then which of the combination is not a meaningful quantity ?
$\frac{C}{{BD}} - \frac{{A{D^2}}}{C}$
${A^2} - {B^2}{C^2}$
$\frac{A}{B} - C$
$\frac{{\left( {A - C} \right)}}{D}$
Match List$-I$ with List$-II.$
List$-I$ | List$-II$ |
$(a)$ Torque | $(i)$ ${MLT}^{-1}$ |
$(b)$ Impulse | $(ii)$ ${MT}^{-2}$ |
$(c)$ Tension | $(iii)$ ${ML}^{2} {T}^{-2}$ |
$(d)$ Surface Tension | $(iv)$ ${MI} {T}^{-2}$ |
Choose the most appropriate answer from the option given below :
If $L$ and $R$ are respectively the inductance and resistance, then the dimensions of $\frac{L}{R}$ will be
If the constant of gravitation $(G)$, Planck's constant $(h)$ and the velocity of light $(c)$ be chosen as fundamental units. The dimension of the radius of gyration is
Which of the following quantities has the same dimensions as that of energy
Let us consider an equation
$\frac{1}{2} m v^{2}=m g h$
where $m$ is the mass of the body. velocity, $g$ is the acceleration do gravity and $h$ is the height. whether this equation is dimensionally correct.