MCQOPTIONS
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				| 1. | 
                                    Which of the following axis system is being satisfied by cubic crystal system? | 
                            
| A. | a = b = c, = = = 90<sup>o</sup> | 
| B. | a b = c, = = = 90<sup>o</sup> | 
| C. | a = b c, = = = 90<sup>o</sup> | 
| D. | a = b = c, = = 90<sup>o</sup> | 
| Answer» B. a b = c, = = = 90<sup>o</sup> | |