Multiple choice

The approximate velocity of light is

  1. 3x106 m per second

  2. 3x108 m per second

  3. 3x1010 m per second

  4. None of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The speed of light in a vacuum is approximately 300,000,000 meters per second, which is written in scientific notation as 3 x 10^8 m/s.