If a magnet is suspended at an angle $30^o$ to the magnetic meridian, it makes an angle of $45^o$ with the horizontal. The real dip is

  • [AIIMS 2017]
  • A

    ${\tan ^{ - 1}}(\sqrt 3 /2)$

  • B

    ${\tan ^{ - 1}}(\sqrt {3)} $

  • C

    ${\tan ^{ - 1}}(\sqrt {3/2} )$

  • D

    ${\tan ^{ - 1}}(2/\sqrt 3 )$

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