MCQOPTIONS
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MCQOPTIONS
| 1. |
If the angular momentum of an electron in an orbit is J then the K.E. of the electron in that orbit is |
| A. | \[\,\frac{{{J}^{2}}}{2m{{r}^{2}}}\] |
| B. | \[\,\frac{Jv}{r}\] |
| C. | \[\,\frac{{{J}^{2}}}{2m}\] |
| D. | \[\,\frac{{{J}^{2}}}{2\pi }\] |
| Answer» B. \[\,\frac{Jv}{r}\] | |