A paramagnetic material has 10²⁸ atoms/m³. Its magnetic susceptibility at temperature 350 K is 2.8 ×10⁻⁴. Its susceptibility at 300 K is :
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Question

A paramagnetic material has 10²⁸ atoms/m³. Its magnetic susceptibility at temperature 350 K is 2.8 ×10⁻⁴. Its susceptibility at 300 K is :

G1 Physics · Accepted Answer

Curie's law gives χT=constant. Thus χ₂=2.8×10⁻⁴×350/300=3.267×10⁻⁴. Hence C.