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A metallic ring is connected to a rod os...

A metallic ring is connected to a rod oscillates 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

A

`(pi + 2)pi a^(2) E//(2 sqrt2)`

B

`pi a^(2) E`

C

`pi a^(2)E//(2 sqrt2)`

D

`pi a^(2 ) E//sqrt2`

Text Solution

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The correct Answer is:
D
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