1.

AN_UNCOATED_FPA_HAS_PEAK_GAIN_WAVELENGTH_1.8‚ÂÀ√≠¬¨‚À´M,_MODE_SPACING_OF_0.8NM,_AND_LONG_ACTIVE_REGION_OF_300_V._DETERMINE_RI_OF_ACTIVE_MEDIUM?$#

A. 4.25√ó10<sup>6</sup>
B. 3.75√ó10<sup>7</sup>
C. 3.95√ó10<sup>7</sup>
D. 4.25√ó10<sup>9</sup>
Answer» C. 3.95‚Äö√†√∂‚àö‚â•10<sup>7</sup>


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