A paramagnetic sample shows net magnetis...

A paramagnetic sample shows net magnetisation of `18 Am^(-1)` when placed in an external magnetic field of `0.9` T at a temperature of `36` K.When the same sample is placed in an external magnetic field of `0.3` T at a temperature of `54` K,the magnetisation will be

`4 Am^(-1)`

`81 Am^(-1)`

`36 Am^(-1)`

`9Am^(-1)`

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