MCQOPTIONS
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| 1. |
A photoelectric cell is illuminated by a point source of light 1m away. When the source is shifted to 2m then |
| A. | number of electrons emitted is a quarter of the in ideal number |
| B. | each emitted electron carries one quarter of the initial energy |
| C. | number of electrons emitted is half the initial number |
| D. | each emitted electron carries half the initial energy |
| Answer» B. each emitted electron carries one quarter of the initial energy | |