gamma rays properties

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...

Cathode rays travel in straight lines from the cathode to anode and cast shadow of the object placed in their path. (a) Cathode rays travel in straight lines. Cathode rays consist of an invisible stream of negatively charged particles. When the plates X and ..

Travel in straight linesThey cast a shadow of the objects placed in their way. Produce mechanical effectA paddle wheel placed in their path starts rotating. Rays are positively chargedWhen an electric field is applied in the path of anode rays, they are deflected towards..

X-Rays follow a rectilinear propagation and travel with a velocity of 3 x 10 8 ms - 1 in vacuum. They are not deflected by electric and magnetic field. Since they do not contain any charge but are diffracted by crystals, X-rays cause fluorescence when incident on certain mate..

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..

(i) g -rays are not deflected by electric and magnetic fields and this shows that they do not have any charge. (ii) The rest mass of g -ray photon is zero. (iii) The g -rays travel with the speed of light. (iv) g -rays have a very large penetrating power..

Formation of Image by a Plane Mirror - Ray Diagrams - The following rays are usually considered while constructing ray diagrams: A ray of light incident on a plane mirror at 90 degree gets reflected from the mirror along the same path. A ray of ligh..

(i) a - rays consists of a -particles carrying double positive charge having a mass roughly four times that of hydrogen atom. (ii) Due to large mass, their penetrating power is very small. (iii) Due to large mass and velocity they have a large ionizing power. (iv) a - rays..

Summary - When a ray of light is incident on a boundary separating the two media having different densities: A part of the light gets reflected. Rest of the light changes its direction as it enters the second medium. The change of direction suffered by a ray of light as it passe..