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The time t of a complete oscillation of ...

The time `t` of a complete oscillation of a simple pendulum of length `l` is given by the equation `T=2pisqrt(1/g)` where `g` is constant. What is the percentage error in `T` when `l` is increased by 1%?

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The correct Answer is:
0.02
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NAGEEN PRAKASHAN ENGLISH-APPLICATIONS OF DERIVATIVES-Exercise 6c
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