In society, moral ideas, knowledge and modes of behavior are transferred from one generation to another through the medium of institution. This helps younger generation in the solution of the problems confronting it.
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Positive science implies that science which establishes relationship between cause and effect. In other words, it scientifically analyses a problem and examines the causes of a problem.
Cathode rays consist of negatively charged particles called electrons. These electrons move away from cathode with very high speeds. These fast moving electrons collide with the molecules of the gas in the tube, split the molecule into atoms, and remove one or more electrons from the atoms.