NEET UG PHYSICS MCQ: NUCLEI

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An unstable heavy nucleus at rest breaks into two nuclei which move away with velocities in the ratio of 8 : 27. The ratio of the radii of the nuclei (assumed to be spherical) is :

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Correct option: C

3\mathrm{ }:\mathrm{ }2

Option C (3 : 2) is correct because the ratio of radii is inversely proportional to the cube root of the velocity ratio, derived from momentum conservation and the relationship between mass and radius.

More Questions from NUCLEI

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The ratio of the nuclear radii of elements with mass numbers

\mathrm{216}

\mathrm{125}

is In a hypothetical fission reaction

{ }_{92} X^{236} \rightarrow{ }_{56} Y^{141}+{ }_{36} Z^{92}+3 R

The identity of emitted particles

({R})

is: The radius of the nucleus of the atom with A=216 is (take

{R_0}\; = \mathrm{ }1.3fm

) The correct sequence of the increasing wavelength of the given radiation sources is Which of the following nuclear fragments corresponding to nuclear fission between neutron

\left({ }_0^1 \mathrm{n}\right)

and uranium isotope

\left({ }_{92}^{235} \mathrm{U}\right)

is correct: Which of the following has the mass closest in value to that of the positron

1\,\,a.m.u = 931\,\,MeV