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In an experiment with bar pendulum having four holes, the same time period is recorded when it is suspended at distances `21cm, 24cm, 40cm` nad `52cm` respectively form one end. The length of bar pendulum isA. `84 cm`B. `72 cm`C. `64 cm`D. `60 cm` |
Answer» Correct Answer - C Holes should be at equal distance from either end to have same time period. |
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