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| Q. |
'Parsec' is the unit measurement of - |
| A. | Density of stars |
| B. | Astronomical distance |
| C. | Brightness of heavenly bodies |
| D. | Orbital velocity of giant stars |
| Answer» B. Astronomical distance | |
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Explanation: The parsec (symbol: pc) is a unit of length used to measure large distances to astronomical objects outside the Solar System. |
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