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Illustrate the A and B coefficients of Einstein in shortly.
Einstein’s A and B coefficients:
Einstein suggested a mathematical expression for the existence of stimulated emission of light that is termed as Einstein’s expression.
Into atomic system, each three transition processes as stimulated absorption, spontaneous emission and stimulated emission happen simultaneously. While photons interact along with atoms, both upward i.e., absorption and downward i.e., emission transitions happen. At equilibrium such transition rates should be equal.
For a blackbody, the frequency at which maximum energy is emitted is 3 x 10 13 Hz: A. Give a wavenumber for the wavelength of the infrared emission? B. What is the tempera
Longitudinal Wave A wave is a disturbance of a medium that transports energy by the medium without enduringly transporting matter. Within a wave, particles of the medium are te
Derive a mathematical expression for the energy stored in a capacitor. What is the energy stored when the space between the plates is filled with a dielectric a) With chargi
Evaluate the volume of water in a round reservoir approximately 1 km in radius, if the depth of the water is 15 m. Approximately how many balls with a diameter of 1.8 cm should
Conservative Force : A force is told conservative when the work completed by the force in moving a particle from an instance to another instance is independent of the path followed
The signal which has only two values. I.e. either a constant high value of voltage or zero value is known as digital voltage signal
Two forces-55-N clockwise and 35-N counters clockwise-are applied to a merry- go-round with a diameter of 4.5 m. What is the net torque?
Pitch is the tone of the note/ssong. (high or low) intensity involves speed, loudness, business and strength in a piece.
Explain the Energy and Mass Albert Einstein described an intricate relationship between matter and energy. It is summarized in the famous formula: E = mc 2 In this equ
Uniform motion When a body falls by a fluid, the pull of gravity is soon balanced by the frictional forces set up, and it continues to move at a constant velocity. If this is t
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