Light year is the unit
Question
Light year is the unit of _________.
Options
Option A
Length
Option B
Time
Option C
Velocity
Option D
None
Correct Option
Option A
Explanation
A light-year is a unit of length. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km.
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