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The ‘parsec’ is the unit of
1. Distance
2. Time 
3. Energy
4. Temperature

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Correct Answer - Option 1 : Distance

The Correct Answer is Distance.

 

  • The parsec is a unit of length used to measure vast distances between astronomical objects outside the Solar System.
  • It is roughly equivalent to 3.26 light-years or 206,000 astronomical units, or 30.9 trillion kilometers (19.2 trillion miles).
  • Proxima Centauri, the closest star, is around 1.3 parsecs (4.2 light-years) away from the Sun.
  • The majority of stars visible in the night sky to the naked eye are within 500 parsecs of the Sun.
  • The term parsec, derived from the parallax of one arcsecond, was invented by British astronomer Herbert Hall Turner in 1913 to make astronomical distance measurements easier for astronomers using only raw observational data.

Quantity Units
Time  Second, Hour, Century, Decade, Julian Year, etc.
Energy Joule, kilowatt hour, Erg etc.
Temperature Celsius, Farenhiet, Kelvin 

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