Figure given below shows variation of photocurrent with anode potential for different intensities of incident radiation. Some of the results obtained from the experiments are described below on the basis of the graph. Identify the correct results:

(A) The photoelectric current is higher for higher intensity of the incident radiation.
(B) The negative potential required to decrease the photocurrent at different intensities to zero is different.
(C) If the positive potential of the anode is increased beyond a certain value, the photocurrent does not increase for a given intensity.
(D) If the potential applied at the anode is zero, then the photocurrent is lower than the maximum value of current for the given intensity.

Choose the correct answer from the options given below:

(A), (C) and (D) only

The correct answer is Option (3) → (A), (C) and (D) only

(A) True → From the graph, $I_3 > I_2 > I_1$, so photoelectric current increases with intensity.

(B) False → The stopping potential (negative potential required to bring current to zero) is the same for all intensities because it depends only on the maximum kinetic energy of photoelectrons, not on intensity.

(C) True → For a given intensity, once saturation current is reached, further increase in positive potential does not increase photocurrent.

(D) True → At $V = 0$, the photocurrent is less than the saturation current since some electrons are unable to reach the anode.

Correct statements: (A), (C), (D)