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CHEMICAL EFFECTS OF ELECTRIC CURRENT:  PHYSICS SHORT ANSWER QUESTIONS   CHEMICAL EFFECTS OF ELECTRIC CURRENT When an electric current flows through conducting materials, it produces chemical reactions or effects on the materials, either on their physical properties or chemical properties or on both. These effects are studied under electrolysis and these effects are called the chemical effects of electric current . Electrolysis: Electrolysis basically means the decomposition of a substance or a solution in its molten form when an electric current is passed through the substance. Electrolytes: Electrolytes are substances or compounds which has their own electric charge and are capable of conducting electricity. They contain ions that are dissociated into positively and negatively charged particles and thus produce an electric current. Acid Solutions, Bases, Salt solution, and Acidulated water are examples of electrolytes. Non–El

WAVE MOTION:  PHYSICS SHORT ANSWER QUESTIONS What is Wave Motion ? A wave is a disturbance in a medium and the wave motion explains how a wave moves in any medium. Air isn't a wave. The particles of air move in random directions. However sound can act as a medium for the propagation of other waves. For example, a sound is basically a pressure wave that moves in air through compressions (regions of high density in the air molecules) and rarefactions. Following are some of the chosen V ery Important Physics Short Answer Questions of the Wave Motion module: 1. How are stationary waves formed? Ans: Waves of the same wavelength and amplitude traveling with the same speed through a medium in opposite direction and superimpose upon each other, they give rise to a wave which is called stationary. In stationary waves, there is a certain point where the amplitude of vibration is always zero. point is known as nodes. Midway between these nodes, there are other points where the amplitude o

BEGGARS:  ESSAY IN ENGLISH In a lot of countries in the world, begging is not allowed by law. Begging is not being treated as an illegal activity in our country. Our country is very poor, so we find many beggars . Giving charity to those people is considered a virtue in our country. A long time back, our forefathers thought that it is a custom and further it is handed down to us. Giving charities and alms to the people is extolled by our Scriptures. We regard beggars with kind consideration. Beggars go from door to door begging alms. A lot of helpful people give them something on which they generally give a handful of rice or some money. Beggars are seen on the streets in towns, some of the passers-by give them a few paisas. Beggars are also seen around temples. The pilgrims give them something. We find many beggars around the way of the temples which are visited by pilgrims. Some beggars are considered holy men. They are called Sadhus. People hold them in high respect. The Sadhus ar