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प्रश्न
Define.
Nuclear fission
उत्तर
In nuclear fission, the atom of a heavy element is bombarded by a neutron to form an unstable isotope which further splits into two or more smaller nuclei releasing extra neutrons and large amount of energy and heat.
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संबंधित प्रश्न
Fill in the following blank with suitable word:
In a nuclear power station, nuclear fission takes place in the .............
What will happen if slow moving neutrons are made to strike the atoms of a heavy element `''235_92U`? What is the name of this process?
The energy produced by converting 1 gram mass of a nuclear fuel into energy completely is:
(a) 9 × 1016 J
(b) 9 × 1014 J
(c) 9 × 1015 J
(d) 9 × 1013 J
A nuclear reaction is represented by the following equation:
`""_92^235U+_0^1n-> _56^139Ba+_36^94Kr+xc+E`
Name the process represented by this equation and describe what takes place
A nuclear reaction is represented by the equation:
`""_1^2H+_1^2H->_2^3He+xc+E`
State two conditions under which such a reaction takes place.
Explain why, in a nuclear reactor, the chain reaction stops if the control rods are fully inserted into the graphite.
Make the correct choices in the following:
(a) In one atom of copper (mass number 63, atomic number 29) there are
What do you mean by atomic number?
In what way are these numbers related to the isotopes of an element?
What is a.m.u?
How does the position of an element change in the periodic table when it emits out an alpha particle?
What will an alpha particle change into when it absorb one electron.
Write the problems associated with hydroelectric power projects.
In an atomic power station, nuclear energy is converted into electrical energy.
Which is the process used to harness nuclear energy these days? Explain it briefly.
Atomic power plant in Maharashtra is ______.
Give scientific reason.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Why is nuclear fission useful to mankind?
