Find out the surface charge density at the intersection of point $x =3\, m$ plane and $x$ -axis, in the region of uniform line charge of $8\, nC / m$ lying along the $z$ -axis in free space.

  • [JEE MAIN 2021]
  • A

    $0.424 \,n\,C m ^{-2}$

  • B

    $47.88 \,C / m$

  • C

    $0.07\, n\,C m ^{-2}$

  • D

    $4.0\, n\,C m ^{-2}$

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