A hemispherical bowl of mass $m$ is uniformly charged with charge density $'\sigma '$ . Electric potential due to charge distribution at a point $'A'$ is (which lies at centre of radius as shown).

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  • A

    $\frac{{\sigma R}}{{4{\varepsilon _0}}}$

  • B

    $\frac{{\sigma R}}{{3{\varepsilon _0}}}$

  • C

    $\frac{{\sigma R}}{{2{\varepsilon _0}}}$

  • D

    $\frac{{\sigma R}}{{{\varepsilon _0}}}$

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  • [JEE MAIN 2013]