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A paramagnetic sample shows a net magnetisation of \( 8 \mathrm{Am}^{-1} \) when
\( \mathrm{P} \) placed in an external magnetic field of \( 0.6 \mathrm{~T} \) at a temperature of

W \( 4 \mathrm{~K} \). When the same sample is placed in an external magnetic field of \( 0.2 \mathrm{~T} \) at a temperature of \( 16 \mathrm{~K} \), the magnetisation will be
(a) \( \frac{32}{3} \mathrm{Am}^{-1} \)
(b) \( \frac{2}{3} \mathrm{Am}^{-1} \)
(c) \( 6 \mathrm{Am}^{-1} \)
(d) \( 2.4 \mathrm{Am}^{-1} \).
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