Concept:Historical experiments strictly categorize light phenomena into those proving wave theory (continuous oscillation) and those proving particle theory (discrete quantization).
Formula:N/A
Solution:- Interference (Young's double slit), diffraction (bending around obstacles), and polarization (transverse oscillation orientation) can ONLY be explained by modeling light as a wave.
- However, the Photoelectric effect utterly defies wave logic; classical wave theory predicted delayed electron emission at low intensities, which never happens.
- Einstein solved this by proving light acts as a discrete particle (photon) during the photoelectric effect.
Why other options are incorrect:The question asks for the EXCEPTION to wave evidence. Interference, Diffraction, and Polarization are explicitly wave evidence, leaving only the Photoelectric effect as the particle exception.
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