The mass and diameter of a planet are twice that of the earth. The period of oscillation of pend...

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The mass and diameter of a planet are twice that of the earth. The period of oscillation of pendulum on this planet will be for a second pendulum
a. \( 1 / \sqrt{2} \)
b. \( 2 \sqrt{2} \)
c. 2
d. \( 1 / 2 \)
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