issb general knowledge MCQ #291

The speed of light is about:

issb general knowledge MCQ #291

  1. Question 1

    Q1. The speed of light is about:

    • A) 300,000 km/s
    • B) 300 km/s
    • C) 3,000 km/s
    • D) 30,000 km/s

    Answer: 300,000 km/s

    Explanation: Light travels about 300,000 km per second in vacuum. This fact often appears in ISSB academic and general knowledge sections.