Question

In which of the following statements the word light year is used correctly?

• A. Light travels with the speed of $1$ light year in the Universe
• B. Cetus dwarf galaxy is $2.46$ million light year away from us
• C. The next complete solar eclipse will be seen after $32$ light year
• D. The Earth takes $365$ days to complete the distance of $1$ light year around the Sun.

Answer 1

Answer: (B)

Cetus dwarf galaxy is $2.46$ million light year away from us

Light year is a unit of distance and is defined as the distance traveled by light in one year. So, B is correct.