A point charge $q$ is placed on the centre of a hemispherical surface as shown in figure.The net flux of electric fietd tnroug the hemi-spherical surface is closest to

820-3

  • A

    $\frac{q}{{2{\varepsilon _0}}}$

  • B

    $\frac{q}{{\sqrt 2 {\varepsilon _0}}}$

  • C

    $\frac{q}{{2\sqrt 2 {\varepsilon _0}}}$

  • D

    None of these

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