1. Tardigrade
  2. Question
  3. Physics
  4. Number of electron emitted by a surface exposed to light is directly proportional to the:

Q. Number of electron emitted by a surface exposed to light is directly proportional to the:

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Solution:

According the photoelectic effect, the number of photoelectrons emitted from the surface of the photo cathode is directly proportional to the intensity of the incident light. Hence, the number of electrons emitted by a surface exposed to light is directly proportional to the intensity of light.