LIGHT

 THE LIGHT

After the Second World War, Russia and its friend countries tested 200 Nuclear Bombs to their Soldiers to train them. They are trained for their next Nuclear War. A Media has taken an Interview to the soldiers who are still live after the Nuclear Bomb Test. The soldiers are instructed to cover their eyes with their hands to protect their eyes. In that, Light can't affect them. Even though, they can see. During the Bomb Blast, The soldiers can see their Blood Vessels and their Bones also. In this, We are clear that, All type of Light can't visible to us. Many Electro Magnetic Waves passes among Us. The Light is also a  Electro Magnetic Wave. They are all contains Photons. Let's see about the Light. 

THE ELECTRO MAGNETIC WAVES:

After You heard the Word Light, You can imagine that the objects we see are visible by the Light. But We are all surrounded by Electro Magnetic Waves. The arrangement of Waves are called as Electro Magnetic Spectrum. The rays from the Cell phone tower is the Radio Waves. It  is also a type of Electro Magnetic Waves. The rays emitted from the Nuclear Radiations, X-Rays, Gamma Rays is also a type of Electro Magnetic Waves. The common particle present in these waves are Photons. Photons has no mass. It doesn't has a definite shape also. Simply, It is a form of Energy. We all know that, The Light has both Particle and Wave nature. In the   Electro Magnetic Spectrum, The Visible Light that we see is also present. In this Visible Spectrum, Purple Color has the highest Energy. But, The wavelength of Purple is lesser. Red Color has the least Energy. But, It's Wavelength is longer. Therefore, The Energy of Photon is inversely proportional to its Wave Length.

Radio Waves has the least Energy in the  Electro Magnetic Spectrum. But, How the Light is formed? You take an atom. Nucleus is present in the center of that atom and it is Positively Charged. Electrons revolves around the Nucleus and it is Negatively Charged. Electrons has energy to revolve. Energy helps Electrons to maintain to its position in the Orbital. If you pass Energy in the form of heat or Light or any other form, The electrons absorbs energy and move to the Higher Energy Orbital. The atom becomes Unstable. To maintain its stability, It again losses Energy in the form of Photons to become Stable. And the Electron again comes to its position. The Energy that emitted determines whether the Energy is a Radio Wave or Visible Light or Gamma Rays based on its Energy. If it emits higher energy, It is either Gamma Ray or X-Ray. If it emits small amount of energy, It is either Radio Wave or Visible Wave.

THE RADIATIONS:

The energy of Radio Waves from the Cell Phone Towers has very low Energy. So, Its Wave Length is very long. If you notice a driver's Right side face. This side of his face has more wrinkles than the Left side. Because, By the Right Window, The Sun's radiations affect his skin. He is affected by the UV-Rays from the Sun. These rays also has ability to cause Cancer.

But, Radio-Waves has less energy. So, It can't cause cancer. It is safer too. In the Electro Magnetic Spectrum, The radiation from the Radio Waves to the Visible Light is called NON-IONIZING RADIATION. And the left all Waves are called as IONIZING RADIATION. Ionizing Radiation has the ability to move the Electron from its Orbital path of an atom. But, Non-Ionizing Radiation has no ability to move electron. So, Radio Waves are safer to use. 

IN THE X-RAY MACHINE:

The X-Ray machine contains both Anode and Cathode. Cathode has a Metal Filament. If this Metal Filament is heated, It emits Electrons. The Electrons are travels with high Velocity with the help of a Power source tp hit the anode. Anode is made up of Tungsten.

So, The Electrons emitted from Cathode replaces the Electrons in the Tungsten to Higher Energy Orbitals. Tungsten's Nucleus again losses to maintain its stability. That higher energy Photons are in X-Ray frequency. That scans our Bones.