Explain the nuclear chain reactions, Physics

Assignment Help:

Explain the Nuclear Chain Reactions

Fission is the breaking up of a massive nucleus into two fragments, with the release of energy and some particles. Uranium 235 fissions upon capturing a neutron, thus releasing a large amount of energy and two or more neutrons. If the uranium is carefully arranged so that the neutrons released will cause other Uranium nuclei to fission, a chain reaction can occur. Boron rods which can be inserted into the nuclear reactor, or pile can be used to absorb the escaping neutrons and slow down the reaction. Cadmium can also be used in the control rods. Fission of Uranium 235 proceeds best with slow-moving neutrons, so moderators such as graphite and deuterium (used in heavy water) are used to slow down the neutrons.

184_Nuclear Chain Reactions.png

The A-bomb or fission bomb splits large amounts of fissionable materials quickly, releasing large amounts of energy and radioactive material. Not all radioactive materials are serious radiation hazards. Some are not man-made but instead are naturally occurring.  The ones with very long half-lives and ones that emit very high energy radiation are most dangerous. 


Related Discussions:- Explain the nuclear chain reactions

Stationary on inclined plane, A metal rod of mass 10 g and length 10 cm is ...

A metal rod of mass 10 g and length 10 cm is placed on a smooth 60 degree incline. A uniform magnetic field B is applied in the region vertically downwards . If a current of 3 A is

Cph has rest mass, CPH has rest mass, so how it explained by relativity? ...

CPH has rest mass, so how it explained by relativity? Answer; never can we see CPH at rest condition. CPH moves faster than light.

Explain conservative force and non-conservative force, Conservative Force :...

Conservative Force : A force is told conservative when the work completed by the force in moving a particle from an instance to another instance is independent of the path followed

Paper capacitors, In this type of capacitors the dielectric consists of one...

In this type of capacitors the dielectric consists of one or more layer of extremely thin craft paper which looks very much like cigarette paper. The metal plates consist of alumin

What is atmospheric pressure, The atmospheric pressure at any position is n...

The atmospheric pressure at any position is numerically similar to the weight of a column of air of unit cross-sectional area extending from that position to the top of the atmosph

What is compton effect, The scattering of a photon by an electron is known ...

The scattering of a photon by an electron is known as Compton Effect. The momentum and energy is preserved. Scattered photon will have less power as compare to incident photon (les

Astrophysics, what will happen if we place a glass with the size of the ear...

what will happen if we place a glass with the size of the earth at a distance of 10 light years apart

Visible radiation (waves), Visible Radiation (Waves): Visible waves hav...

Visible Radiation (Waves): Visible waves have a wavelength range among 400 and 700 nanometre.

Calculate three straight-line segments, In a particular region there is a u...

In a particular region there is a uniform current density of 18 A/m 2 in the positive direction. What is the value of fB·ds when that line integral is calculated along the three s

Inelastic scattering (raman''s effect), Under particular condition, light c...

Under particular condition, light can also suffer inelastic scattering from molecules in which it's wavelength changes.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd