Physics

Electromagnetic waves are composed of oscillating electric and magnetic fields at right angles to each other and both are perpendicular to the direction of propagation of the wave. Electromagnetic waves differ in wavelength (or frequency). In  an electronegative wave the electric field E(vector) and the Magnetic field B(vector) oscillate perpendicular to each other and both [...]

Important Topics, Physics Tags: Electromagnetic Induction, Electromagnetic Radiations, Electromagnetic spectrum, Electromagnetic waves

It is a device developed by Lawrence and Livingstone and is used to accelerate charged particles like protons and deuterons. This results in the production of high energy beam which is then used for artificial disintegration, etc.It consists of two D shaped metal boxes (about 21″ in diameter) with their straight sides facing each other.

Important Topics, Physics Tags: Cyclotron Frquency, Cyclotron in India, Cyclotron Motion, Cyclotron Principle, Cyclotron Resonance

Modulation is an important step of communication system. Modulation is defined as the process whereby some characteristic (line amplitude, frequency, phase of a high frequency signal wave (carrier wave) is varied in accordance with instantaneous value intensity of low frequency signal wave (modulating wave.)

Important Topics, Physics Tags: Amplitude Modulation(AM), Frequency Modulation(FM), Modulation Amplitude Modulation(AM) Frequency Modulation(FM) and Phase Modulation(PM)

  1) Rutherford carried out experiment on the bombardment of thin (10-4 mm) Au foil with high speed positively charged a- particles emitted from Ra and gave the following observations based on this experiment, (i) Most of the a- particles passed without any deflection. (ii) Some of them were deflected away from their path. (iii) [...]

Chemistry, Important Topics, Physics Tags: Rutherford Experiment, Rutherford Nuclear Model