Question

Which of the following is not a unit of time?

• A. Parsec
• B. Year
• C. Second
• D. Hour

Answer 1

Answer: (A)

Parsec

Answer 2

Parsec is the units of distance.

1 parsec = $3.08 \times 10^{16}m$

Parsec is the distance at which averge radius of earth’s orbit subtends an angle of 1 arc second.