A metallic ring connected to a rod which oscillates freely like a pendulum. If now magnetic field is applied in horizontal direction so that the pendulum now swings through the field, the pendulum will

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Keep oscillating with the old time period

Keep oscillating with a smaller time period

Oscillates with increasing time period and come to rest

Time period may increase or decrease depending on direction of magnetic field.

answer is C.

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Detailed Solution

Given data: A pendulum is there, Magnetic field is horizontal direction

Concept Used: oscillation of pendulum in magnetic field

Detailed Solution:

When a magnetic field is applied horizontally, the pendulum will experience a magnetic force that will act perpendicular to its motion.

This force will cause the pendulum to move in a circular path rather than a straight line. As a result, the pendulum will no longer oscillate with the same time period as before.

The time period of the pendulum will decrease as the magnetic field increases, because the magnetic force will increase with the strength of the magnetic field.

Hence, the correct option is C

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