Light is both a wave and a particle depending on circumstances; this is referred to as the wave-particle duality of light.
Yes. Light has both particle and wave properties.
The photoelectric effect was pretty definitive evidence that light is a particle (well, at least sometimes a particle).
The particle nature of light is illustrated by the photoelectric effect.
Albert Einstein's Photo-electric effect is one of the proof of the particle nature of light. The experiment on the wave particle duality is another proof pf the particle nature of light.
Yes if the size of the particle is greater than the wavelength of light falling on it.
A photon.
The particle nature of light is illustrated by the photoelectric effect.
The lightest subatomic particle is the electron.
Pierre Gassendi (1592-1655), an atomist, proposed a particle theory of light.
No. The more energy the accelerator can give the particle, the closer the particle can approach to the speed of light, but it can never reach exactly that speed.
Not sure what you mean, as the photon is classified as a separate particle. Light, like electrons, sometimes displays particle characteristics and sometimes displays wave characteristics.