NEET Questions

A bar magnet of magnetic moment $M$ and moment of inertia $I$ is suspended in a uniform magnetic field $B$. If it is displaced slightly from its equilibrium position, its time period of oscillations for small angular displacement $heta$ is $T_1$. Now, if another identical magnet is glued to the first magnet along its length with the like poles together, the new time period of oscillations for small angular displacement is $T_2$. The ratio $\frac{T_1}{T_2}$ is:

A bar magnet of magnetic moment 'M' is suspended in a uniform magnetic field 'B'. The time period of small oscillations is 'T'. If the magnetic field strength is tripled, the new time period will be:

A bar magnet oscillates with a time period 'T' in a uniform magnetic field. If the magnet is cut into two equal halves perpendicular to its length, the time period of oscillation of each half in the same field will be:

A thin magnetic needle oscillates in a horizontal plane with a period 'T'. If the needle is now made to oscillate in a vertical plane, its period will:

Two identical bar magnets, each of magnetic moment 'M' and moment of inertia 'I', are joined end-to-end to form a single magnet. This combined magnet oscillates in a uniform magnetic field 'B'. What is its time period of oscillation?

A bar magnet with moment of inertia 'I' oscillates with a time period 'T' in a uniform magnetic field 'B'. If another magnet with the same moment of inertia but double the magnetic moment is placed in the same field, its time period will be:

A bar magnet of magnetic moment 'M' is suspended in a uniform magnetic field 'B'. The time period of small oscillations is 'T'. If the magnetic moment is doubled, keeping the magnetic field constant, the new time period will be:

A bar magnet is suspended horizontally in a uniform magnetic field. When it is slightly displaced from its equilibrium position, it oscillates with a time period of 2 seconds. If the moment of inertia of the magnet is doubled, what will be the new time period?

The time period of a suspended magnet in a uniform magnetic field is 1 second. If the magnetic field strength is quadrupled, what will be the new time period?

A bar magnet oscillates with a time period 'T' in a uniform magnetic field. If the magnet is cut into two equal halves along its length, and one half is suspended in the same magnetic field, its new time period will be: