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JEE Mains 04-Sep-2020 Shift 2 Solved Paper

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Question : 10

Total: 75

A paramagnetic sample shows a net magnetisation of 6 A∕m when it is placed in an external magnetic field of 0.4 T at a temperature of 4 K . When the sample is placed in an external magnetic field of 0.3 T at a temperature of 24 K, then the magnetisation will be :

4A∕m
0.75 A∕m
2.25 A∕m
1 A∕m

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