What two early accounts of light competed?
Particle and wave accounts.
AQA A-level Physics (7408) · 3.3.2.1
Revise AQA A-level Physics (7408) specification point 3.3.2.1, Interference, with free active-recall flashcards. Flip through the set or review every question and answer below.
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What two early accounts of light competed?
Particle and wave accounts.
Which two phenomena provided strong evidence for the wave behaviour of light?
Interference and diffraction.
How did Maxwell’s theory describe light?
As an electromagnetic wave.
How did the photoelectric effect challenge the classical wave model?
It showed that energy is exchanged in discrete quanta, which the classical wave model could not fully explain.
What two types of behaviour does the modern quantum description of electromagnetic radiation incorporate?
Wave-like and particle-like behaviour.
When are scientific models revised or extended?
When existing explanations cannot account for observations.