Plants follow ...$A$... pathways in response to environment or phases of life to form different kinds of structures. This ability is called ...$B$.... Complete the given statement with the correct combination of options.

Which of the following statements is $NOT$ correct for potash alum?

$A$ parallel plate capacitor of capacity $C_0$ is charged to a potential $V_0$. $(i)$ The energy stored in the capacitor when the battery is disconnected and the plate separation is doubled is $E_1$. (ii) The energy stored in the capacitor when the charging battery is kept connected and the separation between the capacitor plates is doubled is $E_2$. Then,the value of $E_1 / E_2$ is:

The ensheathing of muscles is called:

Dispersive power depends on the following:

If $\omega$ is a complex cube root of unity,then $\sin \left\{\left(\omega^{10}+\omega^{23}\right) \pi-\frac{\pi}{4}\right\}$ is equal to