Consider $\alpha - {\rm{Particles}},\,\,{\rm{\beta }} - {\rm{Particles }}\,\,{\rm{and}}\,\,\gamma - {\rm{rays}}$, each having an energy of ${\rm{0}}{\rm{.5 }}\,{\rm{MeV}}$. In increasing order of penetrating powers, the radiations are

$\alpha ,\,\,\gamma ,\,\,\beta $

$\beta ,\,\,\gamma ,\,\,\alpha $

$\gamma ,\,\,\beta ,\,\,{\rm{\alpha }}$

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JEE PHYSICS MCQ: NUCLEI

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Consider

\alpha - \mathrm{Particles},\,\,\mathrm{\beta } - \mathrm{Particles }\,\,\mathrm{and}\,\,\gamma - \mathrm{rays}

, each having an energy of

\mathrm{0}\mathrm{.5 }\,\mathrm{MeV}

. In increasing order of penetrating powers, the radiations are

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Correct option: A

\alpha ,\,\,\beta ,\,\,\gamma

Option A is correct. Alpha particles have the lowest penetrating power, followed by beta particles, and then gamma rays have the highest penetrating power.

JEE PHYSICS MCQ: NUCLEI

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