Assertion A - In nuclear fission-the fragments emit two or three neutrons as soon as they are formed and subsequently emit - particlesReason R - As the fragments contain an excess of neutrons over protons- emission of neutrons occurs to bring the neutron-proton ratio to stable values

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Standard X

Physics

Nuclear Fission

Assertion A :...

Question

Assertion (A) : In nuclear fission,the fragments emit two or three neutrons as soon as they are formed and subsequently emit $β$ particles
Reason (R) : As the fragments contain an excess of neutrons over protons, emission of neutrons occurs to bring the neutron/proton ratio to stable values

Both A and R are true and R is correct explanation of A

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Both A and R are true and R is not correct explanation of A

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A is true but R is false

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A is false but R is true

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Solution

The correct option is A Both A and R are true and R is correct explanation of A
It is a purely conceptual question based on fission. In a fission reaction the fragments emits two-three neutrons as soon as they are formed and as the fragments contain excess of neutrons over protons, the emission of neutrons brings the $n / p$ ratio to stable values.

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Assertion (A) : In nuclear fission,the fragments emit two or three neutrons as soon as they are formed and subsequently emit β particlesReason (R) : As the fragments contain an excess of neutrons over protons, emission of neutrons occurs to bring the neutron/proton ratio to stable values

Assertion (A) : In nuclear fission,the fragments emit two or three neutrons as soon as they are formed and subsequently emit $β$ particles
Reason (R) : As the fragments contain an excess of neutrons over protons, emission of neutrons occurs to bring the neutron/proton ratio to stable values