CUET Preparation Today
A photosensitive surface is illuminated by a point source of light 1 m away. When the source is shifted to 2 m, then |
each emitted electron carries one eighth of the initial energy. number of emitted electrons is half the initial number each emitted electron carries half the initial energy number of emitted electrons is a quarter of the initial number |
number of emitted electrons is a quarter of the initial number |
The correct answer is Option (4) → number of emitted electrons is a quarter of the initial number |
