The distances of Neptune and Saturn from the Sun are nearly $10^{13} \ m$ and $10^{12} \ m$ respectively. Assuming that they move in circular orbits,their periodic times will be in the ratio:

  • A
    $10\sqrt{10}$
  • B
    $100$
  • C
    $\sqrt{10}$
  • D
    $1/\sqrt{10}$

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