MCQOPTIONS
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MCQOPTIONS
| 1. |
The magnetic field associated with a light wave is given, at the origin, byB = B0 [sin (3.14 × 107)ct + sin (6.28 × 107)ct]. If this light falls on a silver plate having a work function of 4.7 eV, what will be the maximum kinetic energy of the photo electrons?(c = 3 × 108 ms-1, h = 6.6 × 10-34J-s) |
| A. | 6.82 eV |
| B. | 12.5 eV |
| C. | 8.52 eV |
| D. | 7.72 eV |
| Answer» E. | |