MCQOPTIONS
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| 1. |
A GaAs injection laser has a threshold current density of 2.5*103Acm-2 and length and width of the cavity is 240 m and 110 m respectively. Find the threshold current for the device. |
| A. | 663 mA |
| B. | 660 mA |
| C. | 664 mA |
| D. | 712 mA |
| Answer» C. 664 mA | |