In the photoelectric effect experiment, the frequency of the incident light is changed from red to blue while keeping the energy per unit area per unit time of the incident radiation fixed. What will happen to the saturation current?

• Correct answer
  A

  Saturation current for blue color light is smaller than red color light
• B

  Saturation current depends on intensity and therefore will be same for red and blue light
• C

  Saturation current does not depend on frequency and therefore will be same for red and blue light
• D

  Saturation current for blue color light is larger than red color light

Hence, the correct answer is option: 'A'.