There is a simple pendulum hanging from the ceiling of a lift. When the lift is stand still, the time period of the pendulum is $T$. If the resultant acceleration becomes $g/4,$ then the new time period of the pendulum is
A$0.8 \,T$
B$0.25\, T$
C$2\, T$
D$4\, T$
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C$2\, T$
c (c) When lift is at rest, $T = 2\pi \sqrt {l/g} $
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