Wave particles duality: History of Light

 Wave particle duality: History of Light

Light is a wave. Oh! sorry particle. Oh! sorry sorry both. Light is a particle or wave you decide after reading this article and leaving your answer in the comment after reading this article.

Light According to Newton:

Newton which is very famous in classical mechanics. Classic mechanics without Newton is not possible. Imagine the equations of motion and laws of motion which are very useful to describe any motion of a machine or for satellites. Our current technology is based on the phenomena of classical mechanics. And this can't be ignored how useful classical mechanics are in our daily lives.

Newton thought that light is a particle to prove this Newton gave his corpuscles theory. According to Newton's corpuscles theory, "light is a particle called corpuscles". This theory is instrumental in describing most of the phenomena of light. But in many cases it fails, for example, to describe phenomena such as interference and polarization.

One major flaw of this is that according to the theory, light travels faster in a denser medium which the experiment proves wrong.

By this, the theory of Newton is rejected and scientists find another theory that describes the true reality of nature.

Light According to Huygen:

Christian Huygen a Dutch scientist gave his wave theory of light. According to them, light is a wave that has some frequency and wavelength.

 Huygen's which says that light is a wave and represents his theory of wavefront is very useful in describing the nature of light. By that time only mechanical waves were known that's why Huygen thought that light moved in a medium called "Aether".

Christian Huygen was a scientist at the same time as Newton but the theory of Newton was accepted more because of the contribution of Newton in physics.

Experiment which proves on Aether medium is present:

Due to Michelson Moley's experiment, it is proved that there is no ether-like medium is present in this universe. Michelson and Moley experiment is very important because it prove that aether like medium is not present.

Thomas Young Experiment:

This theory is an experiment proven by scientist Thomas Young and some other scientists who show the interference of light. 

Young Thomas's double-slit experiment is very useful because it is the base of quantum mechanics. In this experiment, Young has two slits through which he passed coherent sources of light through which he prove that light is a wave.

Particle Nature of light proven Experiment:

But in the 20th century, the photoelectric effect and the Compton effect proved that light is of particle nature. Then it is proved that light behaves both as a particle and a wave.

After this Loius De-Broglie's hypothesis was that quantum particles also behave like particles and waves.

This is history and problems whose solution gives birth to the most powerful division of physics called "Quantum mechanics". This division led us toward the technology of quantum internet, quantum computers, and so on.

Conclusion:

In this article we find basic discuss the history of light. Ad highlight the problems whose solution led us toward quantum mechanics. Light is very important for us to understand behave of electric charge, magnetic charge and gravity. Because light is electromagnetic wave and while traveling through space gravity bend them and that's why it important for gravity.

I hope you like this article. 

Thank you for read the article.

Autor:

This article is written by "Noel Gill".

Software used:

In this article Ahref free keyword generator and Grammarly is used.