A paramagnetic sample shows a net magnetisation
Question:

 A paramagnetic sample shows a net magnetisation of 8 Am-1 when placed in an external magnetic field of 0.6T at a temperature of 4K. When the same sample is placed in an external magnetic field of 0.2T at a temperature of 16K, the magnetisation will be

(a) 32/3 Am-1

(b) 2/3 Am-1

(c) 6 Am-1

(d) 2.4 Am-1

Solution:

(b) 2/3 Am-1

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