einstein discovered that light was a particle and how.
einstein discovered that light was a particle and how.
who discovered that light was a particle and how?
einstein
albert einstein first explained the wave–particle duality of light in 1905. louis de broglie hypothesized that any particle should also exhibit such a duality. the velocity of a particle, he concluded, should always equal the group velocity of the corresponding wave. the magnitude of the group velocity is equal to the particle's speed.









































both in relativistic and non-relativistic quantum physics, we can identify the group velocity of a particle's wave function with the particle velocity. quantum mechanics has very accurately demonstrated this hypothesis, and the relation has been shown explicitly for particles as large as molecules.
matter wave
bullet::::- partial wave analysis









































bullet::::- particle









































bullet::::- particle-in-cell









































bullet::::- particle-induced x-ray emission









































bullet::::- particle-size analysis









































bullet::::- particle-size distribution









































bullet::::- particle (disambiguation)









































bullet::::- particle data group









































bullet::::- particle acceleration









































bullet::::- particle accelerator









































bullet::::- particle aggregation









































bullet::::- particle astrophysics









































bullet::::- particle beam









































bullet::::- particle counter









































bullet::::- particle decay









































bullet::::- particle detector









































bullet::::- particle displacement









































bullet::::- particle experiments at kolar gold fields









































bullet::::- particle horizon









































bullet::::- particle identification









































bullet::::- particle image velocimetry









































bullet::::- particle in a box









































bullet::::- particle in a one-dimensional lattice









































bullet::::- particle in a ring









































bullet::::- particle in a spherically symmetric potential









































bullet::::- particle number









































bullet::::- particle number operator
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