The process in which a heavy nucleus splits into two lighter nuclei- when hit by neutrons is-Nuclear fusionThermal fissionRadioactive decayNuclear fission

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Standard VIII

Physics

Nuclear Fission

The process i...

Question

The process in which a heavy nucleus splits into two lighter nuclei, when hit by neutrons is:

Nuclear fission

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Nuclear fusion

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Thermal fission

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Radioactive decay

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Solution

The correct option is A Nuclear fission
Nuclear fission is a process where a heavy nucleus splits into many lighter nuclei. It is accompanied by the release of a large amount of energy, both as electromagnetic radiation, and as the kinetic energy of resulting fragments.
To achieve fission, the heavy nuclei of an element are bombarded with slow moving neutrons.

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Similar questions

Fill in the following blanks with suitable words :
(a) Splitting of a heavy nucleus into two lighter nuclei is called ___
(b) Uranium-235 atoms will split when hit by ___ This is called ___
(c) Nuclear ___ is used in nuclear power stations for the production of electricity.
(d) In a nuclear power station, nuclear fission takes place in the ___

The splitting of a heavy nucleus into lighter nuclei is known as

Q. During a nuclear fission reaction,
(a) a heavy nucleus breaks into two fragments by itself a light nucleus bombarded by thermal neutrons breaks up
(b) a light nucleus bombarded by thermal neutrons breaks up
(c) a heavy nucleus bombarded by thermal neutrons breaks up
(d) two light nuclei combine to give a heavier nucleus and possible other products.

Q. The process in which a heavy nucleus splits into two lighter nuclei, when hit by neutrons is:

Assertion (A): In the process of nuclear fission, the amount of nuclear energy generated by the fission of an atom of uranium is so tremendous that it produces 10 million times the energy produced by the combustion of an atom of carbon from coal.

Reason (R): The nucleus of a heavy atom such as uranium, when bombarded with low-energy neutrons, splits apart into lighter nuclei. The mass difference between the original nucleus and the product nuclei gets converted to tremendous energy.

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