User: vermavarsha432

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Posts by vermavarsha432

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Answer: A: Explain Maxwell's third equation.
... **Maxwell third equation and its derivation** **Statement** **(a)** It states that,whenever magnetic flux linked with a circuit changes then induced electromotive force (emf) is set up in the circuit. This induced emf lasts so long as the change in magnetic flux continues. **(b)** The magnitude ...
written 8 weeks ago by vermavarsha4320
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Answer: A: What do you mean by critical magnetic field and critical temperature? A lead sup
... **CRITICAL MAGNETIC FIELD** The minimum value of the magnetic field required to destroy completely the super conducting phase is called as critical field **CRITICAL TEMPERATURE** The temperature at which a normal material turns into a superconducting state is called critical temperature. It is d ...
written 9 weeks ago by vermavarsha4320
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Answer: A: Why we see beautiful colours in thin film when it is exposed to sunlight?
... ![enter image description here][1] ![enter image description here][2] ![enter image description here][3] ![enter image description here][4] ![enter image description here][5] ![enter image description here][6] [1]: https://i.imgur.com/tbSaTAF.png [2]: https://i.imgur.com/QRCPGse.png ...
written 9 weeks ago by vermavarsha4320
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Answer: A: What is monomode and multimode fibre? Explain the term V-number.
... **MONOMODE FIBRE** It supports only one mode of propagation. It has very small core diameter requires laser diode as source of light. Transmission losses are very small . They have higher width. used for very long distance applications. They are by default step index they are mostly made up of glas ...
written 9 weeks ago by vermavarsha4320
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Answer: A: For Newton's ring, prove that diameters of nth dark ring is directly proportiona
... Let POQ be the plano-convex lens placed on a plane glass plate AB. Let R be the radius of curvature of the lens surface in contact with the plate. Let p be the radius of a Newton's ring corresponding to the constant film thickness **'t'**. The path difference between the two interfering rays in the ...
written 9 weeks ago by vermavarsha4320 • updated 7 weeks ago by Yashbeer ♦♦ 150
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Answer: A: How is Lissajous figures used to measure unknown frequency?
... The known and unknown signal sources are connected to X and Y plates of CRO respectively. By varying the frequency of the unknown source a stable loop pattern is displayed. Horizontal and vertical tangents to the loops are drawn. The lines on the gratitude may be used instead the number of points a ...
written 9 weeks ago by vermavarsha4320
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Answer: A: A fibre cable has an acceptance angle of 30$^{\circ}$ and core index of refracti
... ![enter image description here][1] [1]: https://i.imgur.com/HYymS5k.png ...
written 9 weeks ago by vermavarsha4320
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Answer: A: Two optically plane glass trips of length 10cm are placed one over the other. A
... ![enter image description here][1] [1]: https://i.imgur.com/hMSen1u.png ...
written 9 weeks ago by vermavarsha4320
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Answer: A: Explain Cylindrical co-ordinate system. State the transformation relation betwee
... - just like in Cartesian system we obtain a point by intersection of three mutually perpendicular plane surfaces in this system also a point is obtained by intersection of three surfaces mutually perpendicular to each other. - but all three surfaces are not plane surfaces one is cylinder and other ...
written 9 weeks ago by vermavarsha4320
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Answer: A: An electron is accelerated through a potential difference of 18kV in a color TV
... ![enter image description here][1] [1]: https://i.imgur.com/WUPNtuM.png ...
written 9 weeks ago by vermavarsha4320

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