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

  • A
    $\frac{32}{3} \text{ Am}^{-1}$
  • B
    $\frac{2}{3} \text{ Am}^{-1}$
  • C
    $6 \text{ Am}^{-1}$
  • D
    $2.4 \text{ Am}^{-1}$

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