A metallic ring connected to a rod oscillates 23 freely like a pendulum If now a magnetic field is applied in horizontal

Question

A metallic ring connected to a rod oscillates 23 freely like a pendulum If now a magnetic field is applied in horizontal direction so that the pendulum now swings through the field the pendulum will x X A Keep oscillating with the old time period B Keep oscillating with a smaller time period C Keep oscillating with a larger time period D Come to rest very soon

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