A second's pendulum is placed in a space laboratory orbiting around the earth at a height $3R$, where $R$ is the radius of the earth. The time period of the pendulum is
A$Zero$
B$2\sqrt 3 \,sec$
C$4\, sec$
D
Infinite
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D
Infinite
d (d) In the given case effective acceleration $g_{eff} = 0 $
==> $T = \infty $
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