Question

Is photo electric current dependes upon frequency of incident light if yes why???

Answer 1

because the frequency send back the denied light so it is yes

Answer 2

The kinetic energy of any single emitted electron increases linearly with frequency above some threshold value and is independent of the lighting entity. (b) The number of electrons emitted per second (i.e. the electric current) is independent of frequency and increases linearly with the light intensity.