MCQOPTIONS
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				| 1. | 
                                    A LASCR has | 
                            
| A. | 4 semiconductor layers and 3 junctions | 
| B. | 3 semiconductor layers and 2 junctions | 
| C. | 2 semiconductor layers and 2 junctions | 
| D. | any of these depending on the rating | 
| Answer» B. 3 semiconductor layers and 2 junctions | |