If $T=2 \pi \sqrt{\frac{L}{g}}, \mathrm{~g}$ is a constant and the relative error in $T$ is $k$ times to the percentage error in $l$, then $\frac{1}{K}=$
- A2
- B$\frac{1}{200}$
- C200
- D$\frac{1}{2}$
✓ Correct answer: C
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