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Light year is a unit of:
1. Distance
2. Time
3. Mass
4. Intensity of light 

1 Answer

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Correct Answer - Option 1 : Distance

The correct answer is option 1) i.e. Distance

CONCEPT:

  • Light year: It is the distance travelled by light in one year. 
    • A light-year is a convenient unit of measurement of large distances.
    • Generally, a light-year is used to represent astronomical distances
    • One light-year is approximately 9 trillion (9 × 1012) km.

EXPLANATION:

  • Large distances are expressed conveniently using light-years. Hence, a light-year is a unit of distance.

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