A point source causing photoelectric emission from a metallic plate is moved away from the plate. The variation of photoelectric current with distance from the source is correctly represented by the graph _________.

Fill in the blank with the correct answer from the options given below.

As distance increases the intensity decreases as $ I \propto \frac{1}{r^2}$

The variation of photoelectric current with distance from the source is also decreasing as $ I \propto \frac{1}{r^2}$.

The correct answer is Option (3).