A photocell is illuminated by a source of light which is placed at a distance $d$ from the cell. If the distance become $\frac{d}{2}$, the number of electrons emitted per second will,

A graph is plotted between maximum kinetic energy of electron with frequency of incident photon in photoelectric effect. The slope of the curve will be,

The graphs show the variation of current $I \left(\mathrm{y}\text{-axis}\right)$ in two photocell $A \text{and} B$ as a function of the applied voltage $V \left(x\text{-axis}\right)$ when light of same frequency is incident on the cell. Which of the following is the correct conclusion drawn from the data?