millikan oil-drop experiment

. When the card is flicked away with the finger the coin drops neatly into the bottle. For success in performing this trick the finger should move in horizontal plane so that the card is not tilted. Place a coin on a smooth card over a water glass. Give the edge of the card a sharp blow w..

An experiment to show that the vertical and horizontal motions of a body are independent of each other - An experiment to show that the vertical and horizontal motions of a body are independent of each other Place two coins A and B near the edge of a table as shown in the figure..

Forests are the invaluable wealth of a country and a renewable natural resource. They are beneficial to man in several ways. a) Forests provide fuel wood, timber, paper, bamboo, rayon, cane etc. b) Forests also provide a large number of important products such as essential oils, tannins,..

Diffusion in Liquids - If a bottle of perfume is opened in one corner of a room, it spreads in the whole room by diffusion. If you drop a little ink in a beaker of water it will spread by itself in the beaker of water and the color spreads uniformly. Diffusion is the natural process of in..

Chromatography is a method of separating and identifying various components in a mixture, which are present in small trace quantities. There are several types of chromatography, one of which is paper chromatography. It is extensively used in research and industry, to analyse and identify different ..

Pure hydrogen burns quietly in air or oxygen with a pale blue flame to give water and large amount of heat. However, hydrogen mixed with a little air, when ignited starts burning with a "pop" sound or explosion. If a mixture of 2 volumes of hydrogen and 1 volume of oxygen is ignited, a rather loud..

Apparent Loss of Mass - You must have seen that when substances like wood, wax, coal, oil, etc. are burnt, they seem to disappear, or leave a very small quantity of residue. It looks as if the mass is much lesser. Well, the loss of some mass of these substances is only apparent. As per th..

Energy - Energy can be defined as the ability to do work. A good source of energy would be the one which would: do a large amount of work per unit volume or mass be easily accessible be easy to store and transport and be economical Fossil Fuel Fossil fuel is a hydrocarbon deposit, such as petroleum..

"The Letter" is a touching story of an old man who is all alone and waits for his only daughter's letter for five long years. He receives that letter only at his grave but for that he pays a price. While living a lonely, morbid life, he undergoes some strange experiences of life in h..

If a current I flows through a potential drop V, the energy lost per second by the drifting charges is VI. In a resistor of resistance R, the loss of energy appears as heat. The rate of heat production P is P = VI = I 2 R = V 2 /R and is independent of the direction of current Electr..