A pendulum of length is free to oscillate in vertical plane about point O An observer is viewing the bob directly from above The

Question

A pendulum of length is free to oscillate in vertical plane about point O An observer is viewing the bob directly from above The pendulum is performing small oscillations in a liquid of refractive index The equation of bob as seen by observer is best given as Itals i c dug fag og da fay zada 21 yg du 42 mac ch tu za 21 duga uadaich a 34 da ta he 25 1 uh Az Tu s as zu A x y 1 B C D y 7 1 2 x y Your Answer 1 72 X

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