introduction to quantum mechanics experiments

In 1900, Max Planck presented the results of his famous black body radiation experiments, which showed that light has a dual character, behaving like a particle as well as a wave. He gave the Quantum Theory of Radiation explaining electromagnetic radiation and energ..

Heat as a form of Energy - Take two beakers one with hot water and another with cold water. Dip your fingers in hot water your finger experience hotness. Then dip your fingers in cold water. Your fingers experience coldness. What makes the water hot or cold? Heat energy content ..

Take a bell jar. Towards its rounded end, fix a 'Y' shaped glass tube and on the open ends of the two branches tie a balloon each. On its open end tie a thin rubber sheet. The cavity of the bell jar acts as the thoracic cavity, the "Y" shaped tube as the trachea that branches into bronchi and the ..

If we rub our hands for a while, the hands become warm. Let us examine the process. Rubbing hands is mechanical work and in this process heat is generated. We can say heat energy is produced as a result of mechanical work. Let us examine another example - when you light a matchs..

Introduction - We have seen in the previous lesson that a current carrying conductor when kept in a magnetic field experiences forces and torques. Is reverse phenomenon possible? If we rotate the coil in a magnetic field, will current flow in the coil without we passing it? The ..

Introduction - In the physical world, one of the most common phenomena is motion. The branch of Physics, which deals with the behaviour of moving objects, is known as mechanics. Mechanics is further divided into two sections namely Kinematics and Dynamics. Kinematics d..

Mechanical waves which can cause the sensation of hearing are called sound waves. These waves are produced by bodies vibrating at frequencies lying between the range of 20Hz and 20,000Hz, perceived by the human ea..

Mechanical waves which can cause the sensation of hearing are called sound waves. These waves are produced by bodies vibrating at frequencies lying between the range of 20Hz and 20,000Hz, perceived by the human ear. This is known as the audible range of frequency. In terms of wavelength, ..

Organic Evolution - Evolution may be defined as a gradual development of more complex species from pre-existing simpler forms. It is an extremely slow process and has occurred over millions of years. Evolution that has occurred is clear because of the evidences of fossils, etc. However, the me..

Introduction - In unicellular organisms a single cell carries out all the life processes as the cell itself is the organism. In advanced forms like the few-celled algae, protozoa, sponges, etc., the size of the organism ensures that all the cells are not very far from each other. The upta..