(a) Draw the graph showing the variation of the number (N) of scattered alpha particles with scattering angle ( θ ) in Geiger - Marsden experiment.…

Draw the graph showing the variation of the number (N) of scattered alpha particles with scattering angle ( $\displaystyle \theta$ ) in Geiger - Marsden experiment. Infer two conclusions from the graph.

Plot suitable graphs to show the variation of photoelectric current with the collector plate potential for the incident radiation of

the same intensity but different frequencies $\displaystyle v_{1}, v_{2}$ and $\displaystyle v_{3}\left(v_{1}<v_{2}<v_{3}\right)$

the same frequency but different intensities $\displaystyle \mathrm{I}_{1}, \mathrm{I}_{2}$ and $\displaystyle \mathrm{I}_{3}\left(\mathrm{I}_{1}<\mathrm{I}_{2}<\mathrm{I}_{3}\right)$