gamma rays history

Emission of a and b -rays bring some changes in the nucleus of the atom and the new element formed as a result of these charges is called daughter elemen..

Gamma decay is the phenomenon of emission of gamma ray photon from a radioactive nucleus...

They are not deflected by electric and magnetic fields. They affect photographic plates. The ionising power is very low compared to alpha-particles and beta-particles. They are electromagnetic waves like X-rays and light rays. The wavelength of these rays ar..

The rays that deflected towards the negative plate consist of positively charged particles and these were called alpha rays. The rays, which deflected towards the positive plate, consist of negatively charged particles and these rays were known as the be..

The different types of electromagnetic radiations in the increasing order of wavelengths are, gamma rays ( g ), X-rays, ultra-violet rays (U.V.), visible radiation, infrared radiation (IR), microwaves and radio wave..

Question: The radiations absorbed by ozone layer are ______. 1. infra-red 2. ultra-violet 3. visible 4. gamma rays Answer: ..

It is a spontaneous emission or disintegration of an unstable nucleus resulting in certain radiations. The elements exhibiting this phenomena are called radioactive elements. e.g., radium, thorium, actinium, polonium etc. Radioactivity does not occur due to any external provocation and is a propert..

Radioactive phosphorus (P 3 2 ) is used in the study of metabolism of plants. Radioactive sulphur (S 3 5 ) helps to study advantages and disadvantages of fungicides. Pests and insects on crops can be killed by - radiations., - rays are used for preservation of milk, pota..

Summary - When certain metals are heated to a high temperature, they emit thermions (electrons) and the phenomenon is called thermionic emission Cathode rays are a stream of negatively charged particles emitted from the cathode of an evacuated bulb, when a voltage of nearly 3000 volts giv..

Positron Emission Tomography (PET) - PET is a sophisticated version of radio isotope scanning. The principle behind PET scanning is as follows. Short - lived radio isotopes such as 1 1 C, 1 3 N or 1 5 O are produced and incorporated into a solution (of glucose) that can be injected into the body. A..