MCQOPTIONS
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| 1. |
The stopping potential as a function of the frequency of the incident radiation is plotted for two different photoelectric surfaces A and B. The graphs show that work function of A is [DPMT 1992] |
| A. | Greater than that of B |
| B. | Smaller than that of B |
| C. | Equal to that of B |
| D. | No inference can be drawn about their work functions from the given graphs |
| Answer» C. Equal to that of B | |