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A vibration magnetometer placed in magne...

A vibration magnetometer placed in magnetic meridian has a small bar magnet. The magnet executes oscillations with a time period of 2 s in the earth's horizontal magnetic filed of `24 mu T`. When a horizontal field of `18 mu T` is produced opposite to the earth's ffiled by placing a currect carrying wire, the new time period of magnet will be

A

1 s

B

2 S

C

3 S

D

4 s

Text Solution

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The correct Answer is:
D
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