The second postulate of special relativity states that:

  1. nothing moves faster than sound
  2. energy is conserved
  3. the speed of light in a vacuum is the same for all inertial observers
  4. space is absolute
Answer

C) the speed of light in a vacuum is the same for all inertial observers

Constancy of c. SLO P-11-F-04 · Knowledge

Physics MCQ · More Special Relativity MCQs · Practise