MCQOPTIONS
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| 1. |
\[{{10}^{-3}}W\] of \[\text{5000}\overset{\text{o}}{\mathop{\text{A}}}\,\]light is directed on a photoelectric cell. If the current in the cell is\[0.16\mu A\]. The percentage of incident photons which produce photoelectrons, is |
| A. | 0.004 |
| B. | 0.0004 |
| C. | 20% |
| D. | 0.1 |
| Answer» C. 20% | |