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Nuclear Fission

Chain reactio...

Question

Chain reactions in nuclear fission are possible because

A

large amount of energy is released

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B

two intermediate size nuclear fragments are formed

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C

more than one neutron is given out in each fission

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D

fragments in fission are radioactive

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Solution

The correct option is B more than one neutron is given out in each fission
A nuclear chain reaction occurs when one single nuclear reaction causes an average of one or more subsequent nuclear reactions, thus leading to the possibility of a self-propagating series of these reactions.

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Similar questions

Q. High energy neutrons are used in a nuclear reactor to initiate the fission reaction.

Q. Consider the following statements:
In a nuclear reactor, self-sustained chain reaction is possible, because
1.more neutrons are released in each of the fission reactions.
2.the neutrons immediately take part in the fission process.
3.the fast neutrons are slowed down by graphite.
4.every neutron released in the fission reaction initiates further fission.Which of these statements are correct?

Q. A series of nuclear fissions caused by neutrons released in each fission is called

Q. Statement I : Nuclear fission is a spontaneous process i.e. there is no need of external energy supply for this to happen.
Statement II : In a nuclear fission reaction the rest mass energy of the parent nucleus is more than the combined rest mass energy of two daughter fragments and neutrons.

Q. Assertion :Energy is released in nuclear fission. Reason: The total binding energy of the fission fragments is larger than the total binding energy
of the parent nucleus.

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