discovery of anode rays

Since atoms on the whole are neutral, the presence of negatively charged electrons suggested the presence of positively charged particle..

They travel in straight lines and cast shadow of the object placed in their path. These rays are deflected by magnetic and electric fields in the opposite direction to that of cathode rays. The anode rays produce mechanical and heating effects. The..

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 deflect..

Production of anode rays - Since the atom is electrically neutral there must be positively charged particles present in the atom to neutralize the negative charges of the electrons. Goldstein experimentally proved the existence of protons in the ato..

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 substanc..

The discovery of the phenomenon of radioactivity was purely accidental. In 1896, Henry Becquerel, a French scientist accidentally found that in presence of salt of uranium, photographic plates got heavily fogged even though they were wrapped in opaque paper. He concluded that the ur..

Discovery of Radioactivity - The discovery of the phenomenon of radioactivity was purely accidental. In 1896, Henry Becquerel, a French scientist accidentally found that in presence of salt of uranium, photographic plates got heavily fogged even though they were wrapped in opaqu..

Electron - Discharge Tube experiments - These experiments were conducted in detail by J.J. Thomson and he studied the passage of electricity through gases at extremely low pressure in a cylindrical glass tube. It was discovered that at extremely low pressure, gases become conductors of electricity ..

Discovery of Radioactivity and Nature of Radiations - In 1896, the phenomenon of radioactivity was accidentally discovered by French scientist Henri Becquerel. He was performing experiments with uranium compounds. He accidentally placed a crystal of potassium uranyl sulphate over photogra..

Further experiments established the following properties of cathode rays. They travel in straight lines from the cathode to the anode. (When an object is placed in the path of a cathode ray in the discharge tube, the light gets blocked in the area of the object and ..