Multiple choice general knowledge science & technology

Light year is a measurement of

  1. speed of aeroplanes

  2. speed of light

  3. Stellar distances

  4. speed of rockets
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A light year is the distance light travels in one vacuum year, approximately 9.46 trillion kilometers. It is used to measure vast distances between stars and galaxies, not speeds of objects like aeroplanes or rockets.

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