IAT (IISER) 2020 | Dual Nature of Radiation Question 1 | Physics

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?

Saturation current doesn't depend on frequency and therefore will be same for red and blue light

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

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

Saturation current for blue colour light is smaller than red colour light

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