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Why is heavy water used as a moderator?
Heavy water is a type of water highly enriched in the hydrogen isotope deuterium. We can conclude the neutron interactions with billiard ball collision, where neutron attracts with nucleus of other atoms & lose energy. If the colliding nucleus size is minute like hydrogen nucleus it will lose maximum energy. If nucleus is heavy the neutron hits the nucleus just changes its direction but not that much alter in the energy of neutron. So we use heavy water as moderator to slow down neutrons.
Excitation of Modes in Fiber A multimode fiber is used to couple light into a single mode fiber. Both fibers have the same total diameter. Explain the coupling. Use
working principle of a prism
Explain Shape of the earth? Shape and size of the earth. The shape of the earth is regarded as a sphere, but it is mainly an oblate spheroid like as egg being slightly flatter
retardation?
Anode rays were discovered by: (1)Goldstein (b)J. Stoney (3)Rutherford (4)J.J. Thomson Ans: (1)Goldstein
Q. What is meant by doping? The process of addition of extremely small amount of impurity into an intrinsic semiconductor is called doping.
the steel end-cap is fitted into grooves cut in the timber post.the working stresses for the post are 1.8 mpa in shear parallel to the grain and 5.5 mpa in bearing perpendicular to
Casting : Fe-C alloys with more than 2% carbon are known as cast irons. On crossing the liquidus, proeutectic crystallizes first. On passing by the eutectic temperatures, the liqui
Unbalanced forces cause accelerations. In this case, the unbalanced force is directed opposite the book's motion and will cause it to slow down. To verify if the forces acting
Eg of like and unlike parallel forces
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