The mass and diameter of a planet are twice those of earth. The per...

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The mass and diameter of a planet are twice those of earth. The period of oscillation of pendulum on this planet will be
\( \mathrm{P} \) (If it is a second's pendulum on earth) [IIT 1973; DCE 2002]

W
(a) \( \frac{1}{\sqrt{2}} s \)
(b) \( 2 \sqrt{2} s \)
(c) \( 2 s \)
(d) \( \frac{1}{2} s \)
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