Find the change in length of a second's pendulum, if the acceleration due to gravity at the place
changes from 9.75 m/s2 to 9.8 m/s2.
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Time period of pendulum is:
T=2π
g
l
l=
4π
2
T
2
g
l=
4×π
2
4×9.8
l=0.993m=99.3m
l= length of pendulum
g= 9.8m/s
T = Time period of seconds pendulum =2s
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