Iniciar sesión

Physics for IGCSE & O level - Rays And Waves (Section 6 - No. 36)

What is the speed of light in a vacuum?

30,000 km/s

300,000 km/s

3,000 km/s

30 km/s

Explicación

The speed of light in a vacuum is 300,000 km/s.

Comentarios (0)

Anuncio