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In 1960, Maiman constructed the Ruby laser. It is a three-level solid-state laser and is emitting red light of wavelength 694.3 nm.
Rate of Stimulated emission depends upon the number of atoms present in the excited state as well as the energy density of photons.
The number of atoms present in the excited state is greater than the number of atoms in the ground state is called population inversion.
Simple Harmonic Motion (SHM) is when the restoring force is directly proportional to the displacement of the body from its mean position.
Magnetic Hysteresis Curve represents the relation between magnetizing force (H) and magnetic flux intensity for ferromagnetic material.
Total internal reflection is the complete reflection of a ray of light within the medium.
First posulate of Special theory of relativity is "The laws of physics take the same form in all inertial frames".
Most solid materials show elastic behaviour to a lesser or greater extent.
Nanotechnology have considered as the solution to our smallest to biggest problems. Applications of Nanotechnology are countless.
Maxwell’s equations explain the unique co-occurrence of the electric field and the magnetic field.
Semiconductors are materials that have conductivity between conductors and insulators.
Most solid materials show elastic behaviour to a lesser or greater extent.
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.
The wave function contains all the information about the particle. It is not an observable quantity.
Faraday’s law gives the idea about how an electromotive force comes into action when a magnetic field interacts with an electric circuit.
CRO or Cathode Ray Oscilloscope displays and measures the electrical signals, time intervals and phase shift between two electrical signals.
Lorentz transformation gives the relationship between two different coordinate frames moving at a constant velocity w.r.t. to each other.