Question

One light year, a unit of length, is equal to how many kilometers? (approximate)

• A. ${10}^6\text{km}$
• B. ${10}^9\text{km}$
• C. ${10}^{12}\text{km}$
• D. ${10}^{13}\text{km}$

Answer 1

The correct option is D ${10}^{13}\text{km}$

One light year, a unit of length, when measured in kilometers is approximately equal to ${10}^{13}\text{km}$.