Parsec is a unit of

distance

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velocity

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time

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luminous intensity

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Solution

The correct option is A distance
One parsec is the distance to an object whose parallax angle is one arcsecond. The radius of the Earth's orbit equals one astronomical unit $(AU)$ , so an object that is one parsec distant is $2, 06, 265 AU$ (or $3.26$ light-years) away.

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The unit of time is :

(a) light year (b) parsec

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