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Negative feedback principle:
The idea that in a system where there are self-propagating conditions, those new conditions tend to act against earlier existing circumstances. Such a principle is actually a restatement of a conservation law.
Example Lenz's law.
Suppose that the x rays are emitted from a focal spot isotropically. The photon flux is 3.28 x 10 6 photons mm -2 sec -1 at a distance of 0.75 m from the focal spot. What is the
Quantum theory of gravity
Suppose that the Sun runs out of nuclear fuel and suddenly collapses to form a white dwarf star, with a diameter equal to that of the Earth. Assuming no mass loss, what would then
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Illustrate how temperature measured in fiber optic sensor. Temperature can be measured via using a fiber which has evanescent loss which varies along with temperature. In the f
LAW OF CONSERVATION OF MOMENTUM. "The total linear momentum of an isolated system always constant" OR "If there is no external force ap
Resonance When the frequency of driving force become equal to the natural frequency of an oscillating system, the driving force provides maximum energy and the oscillating syst
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Show that the spectrum of thermal radiation for T ¼ 300K peaks at approximately 10 microns Minimum 100 words accepted
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