When a constant d.c. drive current is applied to device, the optical o – McqOptions

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1.	When a constant d.c. drive current is applied to device, the optical o/p power is 320 m. Determine optical o/p power when device is modulated at frequency 30 MHz with minority carrier recombination lifetime of LED i.e. 5ns.
A.	4.49*10<sup>-12</sup>
B.	6.84*10<sup>-9</sup>
C.	1.29*10<sup>-6</sup>
D.	2.29*10<sup>-4</sup>
Answer» E.

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