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..

Question: Who first stated the law of inertia? Describe a simple experiment to demonstrate the inertia of rest. Answer: Galileo first gave the law of inertia. Place a card on an empty tumbler and a coin on the card as show in the figure. Flick the card with a finger. The coin ..

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 intermingling of the mo..

The natural 'Green-house Effect' is essential for life on earth. Various gases in the atmosphere like water vapour and carbon dioxide trap some of the outgoing radiation from the earth, retain the heat and keep the earth's temperature at levels where living things, including man, can survive. How..

Separation of the Constituents of Mixtures - Chromatography - 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 use..

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 the Law of conservation of..

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 petro..

. d) The Oil carts pulled by languorous camels with their heads held high against the sky is a great image. IV. Pick out words from the passage, which mean the same as the following words or phrases: a) Enjoying b) To have a sharp biting effect c) Treated as same d) Lazy Answer: I The aut..

Is Newton's third law of motion applicable to gravitational force? Yes it is. Let us now see how Newton's third law of motion is applicable to the gravitational force existing between the various objects in the universe. According to Newton's third law of motion to every action, there is an equal a..

Summary - "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..