Physics

Nuclear Chain Reaction The chain reaction is such a process which once started the reaction continues without requiring further energy and a tremendous amount of…

Nuclear Reaction Rutherford was first able to disintegrate nitrogen nucleus by the alpha particle (4He) emitted from a radioactive substance. This was the first event…

Light Adaptation Adjustment of the visual apparatus for vision in the bright light when a person comes from dim light is called light adaptation. This…

Dark Adaptation After entering from a brightly illuminated area into a dark area the vision at first is very poor but after sometimes the vision…

Binding Energy per Nucleon We know, each atom of all the elements, except hydrogen, is composed of protons and neutrons. These are called nucleons. The…

Binding Energy We know, every nucleus, except hydrogen is composed of one or more proton and neutron. These protons and neutrons are called nucleons or…

Mass Defect From the proton-neutron theory about the structure of the nucleus, we know that other than the hydrogen nucleus of atoms of all the…

Radio-Isotopes: Some isotopes are found that show radioactivity for a brief period of time. These are called radioisotopes. These are radioactive isotopes since they have…

Isotones: Those atoms which contain a same number of neutrons (N), but a different number of protons (Z), they are called isotones. They are the…

Atomic Energy: In 1905 famous scientist Albert Einstein showed that matter and energy were actually identical. Matter can be transformed into energy. If a substance…