Multiple choice general knowledge science & technology

The velocity of light first measured by?

  1. Einstein

  2. Newton

  3. Romer

  4. Galileo
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ole Romer first measured the speed of light in 1676 using Jupiter's moon Io, observing its apparent delay in orbit. Einstein developed relativity theory, Newton studied optics, and Galileo attempted but failed to measure light speed.

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