The anode vollage of a photocell is kept fixed . The wavelength `lambda `of the light falling on the cathode varies as follows

The anode voltage of a photo cell is kept fixed. The wavelength lamda of the light falling on the cathode is gradually changed. The plate current I of the photo cell varies as follows

The anode voltage of photocellis kept fixed. The wavelength lambda of the light falling on the cathode is gradually changed. The plate current I of the photocell varies as follows: