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Fermat's principle; principle of least time (P. de Fermat):
The principle put by P. de Fermat, which states the path taken through a ray of light among any two points into a system is always the path which takes the least time.
Ferromagnetic materials exhibit magnetic behaviour similar to ferromagnetism below a critical temperature, known as curie temperatures. Above which it turns out to be paramagnetic.
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What occurs if electrical connection or electrical joint is loose? Ans: Because of loose connection at joints resistance at that point will increase thereby the I²R loses ar
What is the measure of the force of gravity on an object? Force is the vector product of mass and acceleration: F = ma. Weight is a special case of that formula, where you subs
The phase of weightlessness may be observed in the following situations: (i) When objects fall freely under gravity : For example, a lift goes down freely, or an airship showing
what are coherent waves
There are six properties of surface tension:- Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Understand the manufacturing technique of optical fibres by using double crucible method. In double crucible method the inner platinum crucible has core material into molten fo
Attraction & repulsion of atom: It can be observed, that if two negatively charged bodies are brought together, there is a force of repulsion between them. Similarly if two p
Assume the condition for balance in a Wheatstone Bridge Using the principle of Wheatstone bridge, describe the method to determine the specific resistance of a wire in the laborato
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