AIIMS 2018 Physics Photoelectric Current MCQ Question
For a given photosensitive material and frequency (> threshold frequency) of incident radiation, the photoelectric current varies with the intensity of incident light as
Correct Answer
Detailed Explanation
In the photoelectric effect, when light of frequency greater than the threshold frequency strikes a photosensitive material, it causes the emission of electrons. The photoelectric current is directly proportional to the intensity of the incident light because a higher intensity means more photons are available to eject more electrons, assuming the frequency is sufficient to overcome the work function of the material. Other options are not applicable as they do not provide relevant information or alternatives regarding the relationship between photoelectric current and intensity. Understanding this principle is crucial for grasping how light interacts with matter in quantum physics.
Found an issue with this question?