A cathode of a photo electric cell is changed such that the work function changes from W₁ to W₂ (W₁ < W₂) . The currents before and after changes are I₁ and I₂ all other conditions remaining un-changed, then (assuming h$\nu$> W₂)

• A

  I₁ = I₂

• B

  I₁ < I₂   

• C

  I₁ > I₂   

• D

  I₁ < I₂ < 2I₁