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What are the advantages of polymer fibers optics?
The spectral transmission of PMMA fibers is not easy to enhance upon, the quality of the light transmitted over distances longer than four or five meters is considerable fine that the standard glass fibers. Cost is other factor; polymer fibers consist of a lower cost per optical area unit than glass, in part because of the easier manufacturing procedure. High quality PMMA systems rely upon a fusion process to construct the common ending, therefore dispensing with the utilization of epoxy potting compounds. In all illustrations where the use of several fibers or light points is prescribed polymer systems is a superior option. The other point to bear in mind is that the weight factor: glass fibers are heavier than polymer, a fact which may be critical in some applications, like aircraft and automotive uses.
Describe binding energy. How does binding energy per nucleon vary with mass number? What is it significance.
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Anode rays were discovered by: (1)Goldstein (b)J. Stoney (3)Rutherford (4)J.J. Thomson Ans: (1)Goldstein
A 10.0-kg object is held up by a string that will break when the tension exceeds 1.00 x 10 2 N. At what upward acceleration will the string break?
For the hydrogen atom, which series describes electron transitions to the N=1 orbit, the lowest energy electron orbit? Is it the: a) Lyman series b) Balmer series
A ray of light is incident normally on an equilateral prism of refractive index 3/2 calculate devition. Ans) since the prism is equilateral therefore angle of prism is 60 0 =
what is meaning simulation laser produced plasma
when to identical cells are connected either in series or parallel across a 2 ohm resistor they send the same current through it calculate the internal resistance of each cell?
A single turn coil of radius 5cm is placed on a plane paper and magnetic flux, directed perpendicularly out of the paper changes according to φ = 11t 2 + 7t + 15. Determine the ma
Which word in the sentence is the participle? Around the year 1500, Leonardo da Vinci, a great inventor and painter, designed plans for a flying machine, but it was never built.
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