issb general knowledge MCQ #568

Speed of light in vacuum is about?

issb general knowledge MCQ #568

  1. Question 1

    Q1. Speed of light in vacuum is about?

    • A) 300000 km/s
    • B) 3000 km/s
    • C) 30000 km/s
    • D) 3000000 km/s

    Answer: 300000 km/s

    Explanation: Light travels at roughly 300000 kilometers per second. Remember this fact for ISSB general knowledge sections.