Question

What change will you observe in the intensity of incident radiation is changed but the frequency remains the same

Answer 1

this is what happen in dialy called day and night in night light is still coming through the moon whose intensity is very low

Answer 2

Hey !!

Intensity of incident radiation, means the number of photons incident per unit time which is indirectly proportional to the number of emitted electrons from the metal.

So with the change of intensity number of emitted electrons and hence current varies.

eVo = he - Φo

As we can see from above equation of frequency remains same, stopping potenital does not change as stopping potential depends upon frequency and not upon of photons.

Good luck!