Which of the following is an oilseed crop?

On increasing the reverse bias to a large value in a $PN-$junction diode,current

$\sqrt{12-\sqrt{68+48 \sqrt{2}}}$ is equal to :

In an experiment of a simple pendulum, the errors in the measurement of length of the pendulum $(L)$ and time period $(T)$ are $3 \%$ and $2 \%$, respectively. The maximum percentage error in the value of $\frac{L}{T^2}$ is (in $\%$)

In the following reaction,$X$ and $Y$ are respectively:
$CH_3COOH + NH_3$ $\longrightarrow X \stackrel{\Delta}{}$ ${\longrightarrow} Y + H_2O$

The set of all solutions of the inequation $x^2 - 2x + 5 \leq 0$ in $R$ is