NEET UG PHYSICS MCQ: NUCLEI

1 Easy

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Analyzing +4 | -1

Which of the following sequence for the emission of radioactive radiations are followed for a given reaction?

{ }_{\mathrm{z}} \mathrm{X}^{\mathrm{A}} \longrightarrow{ }_{\mathrm{z}+1} \mathrm{Y}^{\mathrm{A}} \longrightarrow { }_{\mathrm{z}-1} \mathrm{~K}^{\mathrm{A}-4} \longrightarrow { }_{\mathrm{z}-1} \mathrm{~K}^{\mathrm{A}-4}

View answer and explanation

Correct option: B

\beta, \alpha, \gamma

Option B (

\beta, \alpha, \gamma

) is correct because the first decay increases the atomic number by 1 (beta decay), the second reduces the mass number by 4 and atomic number by 2 (alpha decay), and the third does not change either (gamma decay).

More Questions from NUCLEI

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The ratio of the nuclear radii of elements with mass numbers

\mathrm{216}

and

\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