ExamPlay Dark Logo
Нэвтрэх

Physics for IGCSE & O level - Rays And Waves (Section 6 - No. 20)

What is the speed of light in a vacuum?
300,000 km/s
200,000 km/s
100,000 km/s
150,000 km/s

Тайлбар

The speed of light in a vacuum is approximately 300,000 kilometers per second.

Смхиман (0)

Сурталчилгаа