issb general knowledge MCQ #767

Speed of light is approximately?

issb general knowledge MCQ #767

  1. Question 1

    Q1. Speed of light is approximately?

    • A) 300000 km/s
    • B) 3000 km/s
    • C) 30000 km/s
    • D) 300 km/s

    Answer: 300000 km/s

    Explanation: Light travels at about 300000 kilometers per second in vacuum. Work each step carefully; ISSB math rewards accuracy under time pressure.