Time period of a simple pendulum is T inside a lift when the lift is stationary. If the lift moves upwards with an acceleration g/2, the time period of pendulum will be:
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a
32T
b
T3
c
3T
d
23T
answer is D.
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Detailed Solution
geff=g+a=g+g2=3g2 Old Time Period = T=2πlg New Time Period = T1=2πlg eff=2πl3g/2=23 T