Q. Light-year is a unit used to measure which of the following physical quantities?
✅ Correct Answer: (B)
Astronomical Distance
Explanation: A light-year is a unit of distance. It is defined as the total distance that a beam of light travels in a vacuum in one Earth year, equivalent to roughly 9.46 trillion kilometers.
Explanation by: Mr. Dubey
A light-year is a unit of distance. It is defined as the total distance that a beam of light travels in a vacuum in one Earth year, equivalent to roughly 9.46 trillion kilometers.