2020 · Q104
Which one of the following phenomena verifies the fact that light travels much faster than sound?
General KnowledgePhysics
- ATwinkling of stars in night sky
- BLighting of a matchstick
- CThunderstorm
- DMirage
Explanation
In a thunderstorm we see the lightning flash well before we hear the thunder, although both originate together — direct evidence that light travels far faster than sound. Twinkling stars, striking matchsticks and mirages demonstrate other phenomena. The correct answer is that light travels faster than sound.