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Two bar magnets placed together in a vib...

Two bar magnets placed together in a vibration magnetometer take `3` seconds for `1` vibration. If one magnet is reversed, the combination takes `4` seconds for `1` vibration. Find the ratio of their magnetic moments.

A

`3:1`

B

`5:18`

C

`18:5`

D

`25:7`

Text Solution

Verified by Experts

The correct Answer is:
D
`(M_(1))/(M_(2))=(T_(2)^(2)+Y_(1)^(2))/(T_(2)^(2)-T_(1)^(2))`
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