A light year is the unit of distance.

Q. Assertion (A): Light year is the unit of time.

Q. Assertion :A light-year is a distance that light travels with velocity of $3\times {10}^8$ $m{s}^{-1}$ in one year. Reason: Light year is the unit for measuring time.

Q. Statement 1: Light year is a unit of time.
Statement 2: Distance between two stars can be measured in light years.

Q. Spaceship $1$ traveled a distance of $400$ light years. Spaceship $2$ traveled half the distance traveled by spaceship $1$. Spaceship $3$ traveled half the distance traveled by spaceship $2$. Determine the distance traveled by spaceship $3$.
(Note: Light years is the unit to measure distance in space.)

Q. If the distance between two stars in a galaxy is 16.3 light years, what is its value in the unit of parsec?