Question

A light-year is a unit of

• A. time
• B. mass
• C. distance
• D. energy

Answer 1

The correct option is C distance

The Light-year is a unit of length used to express astronomical distances and is equivalent to about $9.46$ trillion kilometres $(9.46\times {10}^{12}\text{km})$ or $5.88$ trillion miles $(5.88\times {10}^{12}\text{mi})$.