Scalar quantity: Those quantities which have the only magnitude but no direction are called scalar quantities. For instance mass, time, length, distance. Vector quantity: Those quantities which have both,...
Models of atom Definition: A model is a simplified representation of anything under consideration, to see how it should look like. In a similar manner, to comprehend...
Cathode Rays Cathode rays are the stream of fast moving electrons. These rays are produced in a discharge tube at a pressure below 0.01 rom of mercury. Properties of Cathode Rays Cathode rays are...