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  • A bar magnet A of magnetic moment MA is found to oscillate at a frequency twice that of magnet B of magnetic moment  MB when placed in a vibrating magneto-meter

A bar magnet A of magnetic moment MA is found to oscillate at a frequency twice that of magnet B of magnetic moment  MB when placed in a vibrating magneto-meter. we say that

Option: 1

M_A = 2M_B


Option: 2

M_A = 8M_B


Option: 3

M_A = 4M_B


Option: 4

M_A = 8M_B


Answers (1)

v =\frac{1}{2\pi}\sqrt{\frac{MB_H}{I}} \Rightarrow v \propto \sqrt{M} \\*\Rightarrow \frac{v_A}{v_B} = \sqrt{\frac{M_A}{M_B}} \Rightarrow \frac{2}{1} = \sqrt{\frac{M_A}{M_B}} \Rightarrow M_A = 4M_B

 

Posted by

Sumit Saini

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