WBCS.LIVE practice question

A light year is

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Light emitted by the Sun in one year.
  2. Time taken by light to travel from Sun to Earth.
  3. The distance travelled by light in free space in one year.
  4. Time taken by Earth to go once around the Sun.

Correct answer and explanation

Correct answer: The distance travelled by light in free space in one year.