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Two short magnets having magnetic moments in the ratio 27:8, when placed on opposite sides of a deflection magnetometer, produce no deflection. If the distance of the weaker magnet is 0.12 m from the centre of deflection magnetometer, the distance of the stronger magnet from the centre is

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0.06 m
0.08 m
0.12 m
0.18 m

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detailed solution

Correct option is D

M1M2=d1d23⇒278=d10.123⇒32=d10.12⇒d1=0.18 m

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