Which one of the following is a reason why astronomical distances are measured in light-years?
Question:
Which one of the following is a reason why astronomical distances are measured in light-years?
Which one of the following is a reason why astronomical distances are measured in light-years?
Options
Answer: Speed of light is always same.
Explanation:
A light-year is the distance light travels in one year (≈9.46 trillion km). It is used because the speed of light is constant in vacuum, making it a standard measure of astronomical distances.
Explanation:
A light-year is the distance light travels in one year (≈9.46 trillion km). It is used because the speed of light is constant in vacuum, making it a standard measure of astronomical distances.
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