A caesium photocell, with a steady potential difference of 60 V across it, is illuminated by a bright point source of light 50 cm away. When the same light is placed 1 cm away, the photoelectrons emitted from the cell
are half as numerous
are one quarter as numerous
each carry one quarter of their previous energy
each carry one quarter of their
B.
are one quarter as numerous
Number of photo electrons emitted will be 1/4th as previous.