Parsec is the unit of

A Distance
B Time
C Intensity of light
D Magnetic line

Correct Answer: Distance

One parsec is the distance to an object whose parallax angle is one arc second. The radius of the Earth's orbit equals one astronomical unit (AU), so an object that is one parsec distant is 206,265 AU (or 3.26 light-years) away.
Bissoy MCQ
#General Knowledge #Physics

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