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Photoelectric effect An effect described by A. Einstein that demonstrates that light appears to be built up of photons or particles. Light can do excite electrons (called phot
population inversion The process in which the number of electrons (N 2 ) in a higher energy state called ‘metastable state of an active medium is increased to a value greate
How a CPH products? Answer; no time has passing of a CPH. Thus, CPH exists and never decay.
A boat can travel at a speed of 3 m s -1 on still water. A boatman needs to cross a river whilst covering the shortest possible distance. In what direction should he row with resp
Biot-Savart law (J.B. Biot, F. Savart) A law defines the contributions to a magnetic field through an electric current. This is analogous to Coulomb's law. Mathematically spec
Q. What is a power? Answer: That seat of EMF" reply is SO wrong. Not merely is the rate of charge delivery not power but a seat of EMF doesn't deliver charge. A seat of EM
why are vector and scalar necessary in our everyday activities?
Q. Define: binding energy. The energy equal of mass defect is called as binding energy. ∴ Binding energy = [Zm P + Nm n - m] c 2 = Δm c 2 . Here, Δm is the mass defe
What are a few of the differences between resistance and resistivity? Answer: The resistance R of wire depends on both the size and shape of the wire and on the resistivity
Can you please give me feedback on my physics assignment.
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