Class 12PhysicsDual Nature of Radiation and matterPhotoelectric Effect by Lenard and it's Observations
EasyThe cathode of a photocell is changed such that the work function changes from $w_1$ to $w_2$ $(w_2 > w_1)$. If the saturation currents before and after the change are $I_1$ and $I_2$ respectively,and all other conditions (such as incident light intensity and frequency) remain unchanged,then (assuming $h
u > w_2$):
u > w_2$):
- A$I_1 = I_2$
- B$I_1 < I_2$
- C$I_1 > I_2$
- D$I_1 < I_2 < 2I_1$
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