MCQOPTIONS
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MCQOPTIONS
| 1. |
An incandescent lamp is operating at a temperature of 1000K at an operating frequency of 5.2√ó1014 Hz. Calculate the ratio of stimulated emission rate to spontaneous emission rate.$ |
| A. | 3√ó10<sup>-13 </sup> |
| B. | 1.47√ó10<sup>-11 </sup> |
| C. | 2√ó10<sup>-12 </sup> |
| D. | 1.5√ó10<sup>-13 </sup> |
| Answer» C. 2‚Äö√†√∂‚àö‚â•10<sup>-12 </sup> | |