There are following radiometric quantities
The RUBY MASER consist of a ruby crystal kept in the cavity.
The ward radar means radio direction and ranging. Radar is a system which is used to find out the direction of the target.
Optical rays are the single line or narrow beam of light from a small or distant source.
The process of using different wavelengths to transmit different data just as is done in regular radio transmission is called wavelength multiplexing.
As shown in the given diagram 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
When the electromagnetic waves are propagated from the transmitter antenna, it travels in a free space, up to receiver antenna.
There are the following characteristics of electromagnetic waves.
Field of Electromagnetic wave
There are two fields of the electromagnetic waves
When the alternating current passes through a wire than it sets up an electromagnetic field that propagate away from the wire.
The Q factor of the cavity resonator is the ratio between the stored energy of the cavity to the power loses in the cavity.
We know that laser generates light that has all the characteristics of ordinary light, However there are three important distinct characteristics of laser light that make it different from other or
About the nature of light there are two/three theories have been recognized.