half pipe showing potential and kinetic energy

. The loss in potential energy appears as a gain of kinetic energy and vice versa. The constant interchange of energy between potential and kinetic forms is essential for producing and maintaining any type of oscillation. In the ..

The figure shows a vibrating simple pendulum, O is the point of suspension. When the centre of gravity of the bob is vertically below the point of suspension, the position of the pendulum is called the rest position or mean position. Let us say that the bob is displaced to a position E 1..

Water flowing in high altitude rivers is stored in a man-made reservoir as shown in the figure. The kinetic energy of the flowing water is transformed into potential energy as the water level rises. This water is carried through pipes to the tur..

We define the change in the potential energy of the system, corresponding to a conservative internal force, as Where 'W' is the work done by the internal forces on the system as the system passes from the initial configuration 'i' to the final configuration 'f' . We cannot defin..

Edison's Apparatus After Thomson's discovery of the electron, the mechanism behind thermionic emission was explained. By then it was known that all metals contain some electrons which are free to move about. The atomic forces on these electrons are not sufficient to bind them altogether. If en..

. Further, as electron would lose energy continuously, the atoms should emit electro-magnetic waves over a continuous range. But atoms emit only discrete frequency wavelengths only. From alpha ray scattering experiment, Rutherford calculated distance (r o ) of closest approach of a - part..

. So the minority carriers namely electrons in 'P' type and holes in n-type get accelerated and they attain very high kinetic energy. These highly energetic charge carriers collide with valence electrons breaking their bond creating hole - electron pair, This is called as 'avala..

(c) Cathode rays get deflected in the magnetic field. Figure (c) above shows a beam of cathode rays being deflected by the magnetic field. By applying 'Flemings left hand rule' we can also prove that they are negatively charged particles. Cathode rays travel with a great velocity nearly o..

. Transition state is supposed to be in equilibrium with the reactants. It also has a very short life. That is why, when it was proposed in the 1930s, it was not possible to study the transition state with the techniques available then. With the help of laser pulses of femtosecond to picoseconds le..

Or, representing the initial kinetic energy by T 0 , we have T = T 0 e -2t/ t indicating that the kinetic energy of the oscillating particle too falls exponentially with time, with a relaxation time half that for velocity, i.e., /2, which is only to..