MCQOPTIONS
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| 1. |
The mass of 'Sirus A' is |
| A. | 1.5 times of the Sun |
| B. | 1.8 times of the Sun |
| C. | 2.3 times of the Sun |
| D. | 2.5 times of the Sun |
| Answer» D. 2.5 times of the Sun | |