A paramagnetic sample shows a net magnetisation of when it is placed in an external…

PHYSICS · Single correct · CBSE · Physics · Magnetism and Matter · Magnetism and Matter

Problem

A paramagnetic sample shows a net magnetisation of

6 \text{ A/m}

when it is placed in an external magnetic field of

0.4 \text{ T}

at a temperature of

4 \text{ K}

. When the sample is placed in an external magnetic field of

0.3 \text{ T}

at a temperature of

24 \text{ K}

, then the magnetisation will be : (1)

1 \text{ A/m}

(2)

4 \text{ A/m}

(3)

2.25 \text{ A/m}

(4)

0.75 \text{ A/m}