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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

Time periods of vibration of two bar magnets in sum and difference positions are $4 s$ and $6 s$ respectively. The ratio of their magnetic moments $\frac{M_{1}}{M_{2}}$ is

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Answer:

Solution:

According to sum and difference method

$\frac{M_{1}}{M_{2}} = \frac{{T_{2}}^{2} + {T_{1}}^{2}}{{T_{2}}^{2} - {T_{1}}^{2}}$

$\Rightarrow \frac{M_{1}}{M_{2}} = \frac{6^{2} + 4^{2}}{6^{2} - 4^{2}}$

$\Rightarrow \frac{M_{1}}{M_{2}} = \frac{36 + 16}{36 - 16}$

$\Rightarrow \frac{M_{1}}{M_{2}} = \frac{52}{20} = \frac{26}{10} = \frac{2.6}{1}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:MagnetismSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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