$$ \text { Consider the following schematic plots of orbital wavefunction }\left(\psi_r\right) \text { against distance }(r) \text { from the nucleus. } $$

The figure representing two radial nodes in the orbital is

$$ \text { Match List I with List II : } $$

A bulb is rated at 150 watt, converting $8 \%$ energy into light. If energy of one photon is $4.42 \times 10^{-19} \mathrm{~J}$, how many photons are emitted by the bulb per second?

The ratio of the wavelengths of the light absorbed by a Hydrogen atom when it undergoes $n=2 \rightarrow n=3$ and $n=4 \rightarrow$ $\mathrm{n}=6$ transitions, respectively, is