Target Exam

CUET

Subject

Physics

Chapter

Dual Nature of Radiation and Matter

Question:

The photoelectric current is directly proportional to the number of photo electrons emitted per second. This implies that

Options:

the number of photoelectrons emitted per second is equal to the frequency of incident radiation.

the number of photoelectrons emitted per second is inversely proportional to the intensity of incident radiation.

the number of photoelectrons emitted per second is directly proportional to the intensity of incident radiation.

the number of photoelectrons emitted per second is not related to the intensity of incident radiation.

Correct Answer:

the number of photoelectrons emitted per second is directly proportional to the intensity of incident radiation.

Explanation:

The correct answer is Option (3) → the number of photoelectrons emitted per second is directly proportional to the intensity of incident radiation.