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Drude and Lorentz gave classical free electron theory of metals theory in 1900. Another name for this is Drude –Lorentz theory of metals.
The group of high energy particles, which move closely to the speed of light is the …
The entropy of a substance is a real quantity, just like pressure, volume and temperature. Its unit is joule/Kelvin (J/K).
Nanotechnology have considered as the solution to our smallest to biggest problems. Applications of Nanotechnology are countless.
The process of converting unpolarized light into polarized light is known as polarization.
Compton discovered the most important confirmation about the particle aspect of radiation.
Nanotechnology is dealing with the characterization, design, production and various applications of nanostructures and nanosystems.
The group of high energy particles, which move closely to the speed of light is the …
Helium-Neon Laser laser is a gas laser. In this a mixture of helium and neon gas is used as a gain medium. It was the first continuous-wave laser.
Rate of Stimulated emission depends upon the number of atoms present in the excited state as well as the energy density of photons.
Thermodynamics is the branch of physics which deals with heat and other forms of energy and also gives relationships between them.
The number of atoms present in the excited state is greater than the number of atoms in the ground state is called population inversion.