The length of a seconds' pendulum is nearly :

(a) 0.5 m (b) 9.8 m

(c) 1.0 m (d) 2.0 m.

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Solution

(c) 1.0 m

On earth, the seconds pendulum has a constant length of approximately 1m.

At standard gravity its length is 0.994 m (39.1 in).

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