what uses 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..

A line segment which can be extended in only one direction is called a ray..

A ray can be extended in one direction only. Its other end is a fixed point. ..

A line segment which can be extended in only one direction is called a..

Goldstein experimentally proved the existence of positive charge in matter. In his experiments, a perforated cathode was used in a discharge tube along with air at very low pressure of about 0.001 mm of mercury. When a high voltage of about 10,000 volts was applied to this cathode in the..

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 radiology has played a major role in ..