Optical Rays

Optical rays are the single line or narrow beam of light from a small or distant source. The behavior of light is easier some time by using ray

Field Pattern of Electromagnetic Waves

The field pattern of electromagnetic waves is such that electric field is perpendicular to the magnetic field and both the fields are perpendicular to the direction of propagation.

Electromagnetic Waves

When the alternating current passes through a wire than it sets up an electromagnetic field that propagate away from the wire.

Nature of Light

1st theory is the particle theory, which is presented to explain. The phenomena that were observed concerning light.

Klystron

As shown in the given diagram. The multi cavity klystron consist of a glass envelope in which there is an electron gun composed of heater and cathode.