The smallest positive root of the equation $\tan x - x = 0$ lies in the interval:

If $I$ is the identity matrix of order $2$ and $A = \begin{bmatrix} 1 & 1 \\ 0 & 1 \end{bmatrix}$,then for $n \geq 1$,mathematical induction gives

$A$ competitive inhibitor of succinic dehydrogenase is

The number of radial nodes of $3s$ and $2p$ orbitals are respectively

$A$ solid cylinder of density $\rho_0$, cross-section area $A$ and length $l$ floats in a liquid of density $\rho$ $(> \rho_0)$ with its axis vertical, as shown. If it is slightly displaced downward and released, the time period of oscillation will be:

The pulmonary trunk originates from which of the following?