One requires $11 \mathrm{eV}$ of energy to dissociate a carbon monoxide molecule into carbon and oxygen atoms. The minimum frequency of the appropriate electromagnetic radiation to achieve the dissociation lies in 

The figure shows a capacitor made of two circular plates each of radius $12 \mathrm{cm}$ and separated by $0.5 \mathrm{mm}$. The capacitor is being charged by an external source (not shown in the figure). The charging current is constant and equal to $0.15 \mathrm{A}$, then which of the following is correct?

(Given, ${\epsilon }_0=8.85\times {10}^{-12} {\mathrm{C}}^2 {\mathrm{N}}^{-1} {\mathrm{m}}^{-2}$)