PhysicsMedium49×since 2003Q7611A magnetic needle of magnetic moment 6.7 ×\times× 10⁻² A m² and moment of inertia 7.5 ×\times× 10⁻⁶ kg m² is performing simple harmonic oscillations in a magnetic field of 0.01 T. Time taken for 10 complete oscillations is:A8.76 sB6.65 sC8.89 sD6.98 sCheck answerSkip