MCQOPTIONS
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| 1. |
Photons of energy 6 eV are incident on a metal surface whose work function is 4 eV. The minimum kinetic energy of the emitted photo-electrons will be [MP PET 2001] |
| A. | 0 eV |
| B. | 1 eV |
| C. | 2 eV |
| D. | 10 eV |
| Answer» B. 1 eV | |