The photoelectric current is directly proportional to the number of photo electrons emitted per second. This implies that
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → the number of photoelectrons emitted per second is directly proportional to the intensity of incident radiation.
The photoelectric current depends on the number of photoelectrons emitted per second. Since higher light intensity means more photons striking the surface per second, more electrons are emitted (if frequency ≥ threshold).
Correct option: The number of photoelectrons emitted per second is directly proportional to the intensity of incident radiation.