This query too is an interesting one to roam about.
Have we ever seen two waves traversing on the calm surface of water give out collision among themselves? No and never! Is it not?
That is why scientists used these terms as first and foremost, while they start explaining about the superposition of waves.
"Each and every wave would travel in the medium as if the other waves were absent."
If this is the fate of the waves, then how is it possible for waves such as light when falling on a substance to kick off electrons to come out of the surface. This phenomenon is known as photo electric emission.
First light energy was assumed to be made of corpuscles by Sir Issac Newton. But his theology failed as he declared a wrong idea that the speed of light is more in denser medium. But, by practical experiments done by Foucault and others, that was disproved. Hence wave theology was proposed by Christian Huygens. Sticking on to this wave aspect, James Clark Maxwell proposed electromagnetic wave theory stating that light is not a mechanical wave as sound wave. Light can pass through even through non material medium such as free space, collocqualy saying, vacuum. Hence a wave is able to kick off material like electrons right from the atom. This will be possible only when light is in the form of some particle like which has at least momentum to kick. Hence photon concept was introduced by Einstein. But this quantum concept was already brought to light by Max Planck. That was applied to light energy by Einstein and he named those quanta of light as photons. Photon's rest mass is zero but it has momentum, which is measured right from its wavelength. P = h/ lambda. h is Planck's constant and its value is found to be 6.626 x 10 -34 Js.
photons
Apex Light is made of photons.
Apex Light is made of photons.
he described light as little packets called photons
Einstein said that in a vacuum light travels at a constant velocity that cannot be exceeded by any physical object.
photons
Apex Light is made of photons.
Apex Light is made of photons.
he described light as little packets called photons
Einstein said that in a vacuum light travels at a constant velocity that cannot be exceeded by any physical object.
Albert Einstein proposed the idea the light exists of quanta of energy that he called photons.
e=mc2 light travels fast nothing is faster than the speed of light
Albert Einstein is the foremost authority.
E=mc², Einstein's Theory of Relativity and then in 1905 Einstein came up with the concept that light is made up of particles called photons.
contribution of nature of light in albert Einstein
Albert Einstein did not invent the light bulb(neither did Thomas Edison).
Albert Einstein did not invent the light bulb. You are thinking of Thomas Edison.