PYQ Adv 2023 P1 Q13

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Santosh Sir IITK (Apex Physics)

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Published on April 19, 2024 10:30:08 AM ● Video Link: https://www.youtube.com/watch?v=SuyNRvFACok

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Two point-like objects of masses 20 gm and 30 gm are fixed at the two ends of a rigid massless rod of length 10 cm. This system is suspended vertically from a rigid ceiling using a thin wire attached to its center of mass, as shown in the figure. The resulting torsional pendulum undergoes small oscillations. The torsional constant of the wire is 1.2 × 10−8 N m rad−1. The angular frequency of the oscillations in 𝑛 × 10−3 rad s−1. The value of 𝑛 is _____.


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