A cesium photocell, with a steady potential difference of 60V across it, is illuminated by a small bright light placed 1 m away. When the same light is placed 2m away, the number of electrons crossing the photocell:

Each carries one-quarter of their previous momentum

Each carries one-quarter of their previous energy

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A cesium photocell, with a steady potential difference ... | Physics MCQ #18 | Examora | Examora