the use of gamma rays

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..

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

They are electromagnetic radiations like X-rays having very short wavelength, in the range of 10 -10 m to 10 -13 m. They affect photographic plate. They are unaffected by electric and magnetic fields. Their ionizing power is low, (about one hundredth of b - particles). T..

This has created a revolutionary change in medical sciences. It can take pictures of fractures in bones and diagnose problems such as lung infection et..

When the pressure in the discharge tube is less than 10 - 4 mm of Hg, the discharge tube starts showing fluorescence. When this fluorescence was investigated, it was found that the fluorescence consisted of beams of negatively charged electrons. These electrons emanate normally from the cathode. As..

In 1885, Sir William Crookes carried out a series of investigations into the behaviour of metals heated in a vacuum. The experiment of Crookes and others showed that a heated cathode produced a stream of radiation, which could cause gases at low pressure to glow and which, make other substances em..

X-ray Radiography - X-rays and scanners help doctors to learn a great deal about the body as they reveal defects and abnormalities and thus contribute to diagnosis. It was in 1895, a German Physicist, Wilhelm Conrad Roentgen discovered the X-rays and since then radiolo..

. They penetrate through thin sheets of aluminium or other metal. Cathode rays effect photographic plates. The ratio of charge to mass i.e. charge/mass is the same for all the cathode rays irrespective of the type of gas used in the tube. The above observations lead us..

The discovery of cathode rays led to a vast field of practical application in Electronics. The glow produced by the fast moving electrons on a fluorescent screen led to its use in radar and television. The oscilloscope has many points in common with the discharge tube. In the o..

X-Ray Study of Crystals - In a crystalline solid, the constituent particles (atoms, ions or molecules) are arranged in a regular order. An interaction of a particular crystalline solid with X-rays helps in investigating its actual structure. Crystals are found to act as diffract..