I've just read that light can behave like a wave at times, and a particle at other times. How does the light from the Sun travelling towards Earth behave? A wave? A particle? Or both? And is it in any sense something that actually starts at the Sun, travels across space and ends up at the Earth; or is it more of a domino effect where something at the Sun causes a chain of effects between the Sun and Earth
No relevant equations (that I'm aware of)
The Attempt at a Solution
When thinking of light as a wave I imagine a Mexican wave of people in a sports stadium where the wave propagates across the stadium by virtue of the people standing up and sitting down. In this scenario the people move up and down but their position doesn't vary (apart from moving up and down; they don't travel across the stadium).
But when thinking of it as a particle I imagine photons (discrete packets of light? quanta of light?) starting at the Sun and travelling across space in a stream so the first quantum of light (the first photon) that left the Sun is the first to arrive here and so on (?)
If anyone is kind enough to help me with this please keep the language very basic as I'm a novice. Thanks.[/B]