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Pumping is the process to achieve population inversion .
Faraday’s law gives the idea about how an electromotive force comes into action when a magnetic field interacts with an electric circuit.
In 1895, German physicist Wilhelm Roentgen discovered X-rays. X-rays are electromagnetic in nature and application of X-rays are innumerable.
A predictable correlation of the amplitude and phase at any one point with another point is called coherence.
In 1895, German physicist Wilhelm Roentgen discovered X-rays. X-rays are electromagnetic in nature and application of X-rays are innumerable.
CRO or Cathode Ray Oscilloscope displays and measures the electrical signals, time intervals and phase shift between two electrical signals.
Diffraction can be defined as bending of light when it passes around the edge of an object.
The process of converting unpolarized light into polarized light is known as polarization.
W. L. Bragg gave a simple explanation for the study of crystal structure by using the phenomenon of diffraction and name it is as Bragg’s law.
Pumping is the process to achieve population inversion .
The number of atoms present in the excited state is greater than the number of atoms in the ground state is called population inversion.
First posulate of Special theory of relativity is "The laws of physics take the same form in all inertial frames".