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JEE Main 2017 Physics question

PhysicsOscillationsJEE Main 2017

A magnetic needle of magnetic moment and moment of inertia is performing simple harmonic oscillations in a magnetic field of 0.01 T. Time taken for 10 complete oscillations is :

Answer: (A)

Solution

\sqrt{\frac{I}{MB}}\sqrtExtra open brace or missing close brace{\frac{7.5 × 10^{-6}}${6.7

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Question ID VK-008955