Waves and Particles Flashcards
1
Q
Why do we model light as a wave and a stream of particles?
A
As both models help us understand the behaviour of matter
2
Q
How are electromagnetic waves described?
A
A stream of photons with wave properties and discrete energy levels that depend on their frequency
3
Q
Why has the nature of light been disputed for years?
A
As both models can explain aspects like reflection and refraction, but then they can explain some aspects that the other can’t
ie Waves- superpose causing interference patterns
Particles- Photoelectric effect
4
Q
What did De Broglie say we must be able to calculate if electrons act as waves?
A
A wavelength
