millikan oil drop experiment

Oil and oil wastes enter rivers and other water bodies from different sources such as oil refineries, storage tanks, petro-chemical plants, industrial effluents, oil tanker spillage and automobile waste oil. Normal tanker operations and spillage fr..

Take hydrated copper (II) sulphate crystals in a test-tube and heat. On heating, the blue crystals in the test tube start turning white. Water vapours are released that condense on the cooler part of the test tube. Collect the water drops in a dish. The crystalline copper sulphate turns ..

Now, repeat the whole experiment with castor oil (half kg) in the same vessel. Let its initial temperature be Again heat it exactly for two minutes (so that same amount of heat is supplied to castor oil). Note its temperature as The experiment may be repeated..

Fill a clean dry round-bottomed flask with dry ammonia, close it by a one holed stopper, through which a long jet tube is introduced. The free end of the tube is dipped into a trough of water as shown in figure 6.5. Add two or three drops of an acid and a small quantity of phenolphth..

To study the action of pepsin on proteins - Boil egg white in distilled water till a cloudy suspension is obtained. Cool it and divide the mixture into five equal portions in separate test-tubes. Label them A to E. Add different substances to each of the five tubes as shown in the table below and e..

>Red-hot wood charcoal coverts carbon dioxide to carbon monoxide. The uses of wood charcoal are: Wood charcoal is mostly used as a fuel as it catches fire easily. It is used in gas masks as an adsorbent. It is also used as a decolourising agent for sugar, oils, alcohol, petroleum products..

Aristotle, the great ancient philosopher performed some experiments to study the speed of freely falling objects. He observed that when two bodies of different masses were dropped simultaneously from the same height, the heavier object reached the Earth's surface earlier than th..

Aristotle, the great ancient philosopher performed some experiments to study the speed of freely falling objects. He observed that when two bodies of different masses were dropped simultaneously from the same height, the heavier object reached the Earth's surface earlier than th..

Take a round strip of filter paper. Fold it into half, and then into quarter. Then open it in the form of a cone and place in a funnel and fix it to the funnel with the help of a few drops of water. Take a small quantity of the mixture of water and powdered chalk. Transfer it with the hel..

Place two coins A and B near the edge of a table as shown in the figure. Simultaneously drop the coin A vertically and flick the coin B horizontally. After a while we will hear just one clink, showing that both the coins reach the ground at the same tim..