Log ind
Physics for IGCSE & O level - Rays And Waves (Section 8 - No. 7)
What is the speed of light in 300,000 km/s in?
air
water
vacuum
glass
Forklaring
The speed of light in a vacuum is 300,000 km/s.
Kommentarer (0)
Log ind for at kommentere
Reklame
Tillad, at javascript indlæser denne side korrekt
