What is the speed of all types of electromagnetic radiation in a vacuum? What is it called?
- A$3.0 \times 10^{8} \text{ m s}^{-1}$,Speed of light $(c)$
- B$3.0 \times 10^{10} \text{ m s}^{-1}$,Speed of sound
- C$3.0 \times 10^{6} \text{ m s}^{-1}$,Velocity of particles
- D$3.0 \times 10^{5} \text{ m s}^{-1}$,Wave velocity
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