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AP EAMCET Engineering 2018 Apr 23 Shift 2 Paper

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Question : 112

Total: 160

A sample of a paramagnetic salt containing 3×1024 atomicdipoles each of dipole moment 2×10−23Am2 is subjected to a uniform magnetic field of 880 mT and cooled to a temperature of 3.5 K. The degree of magnetic saturation achieved is 10%. If the sample is subjected to a magnetic field of 990 mT and cooled to a temperature of 2.1 K, the total dipole moment of the sample is

11.25 Am‌‌2
23.5 Am‌‌2
15 Am‌‌2
75 Am‌‌2

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