Physics · 2019
JEE Main · 12 January 2019, Shift 2 · Q19
A paramagnetic material has 10^28 atoms / m^3. Its magnetic susceptibility at temperature 350 K is 2.8 × 10^-4. Its susceptibility at 300 K is:
A paramagnetic material has $\displaystyle 10^{28}$ atoms $\displaystyle / \mathrm{m}^3$. Its magnetic susceptibility at temperature $\displaystyle 350$ K is $\displaystyle 2.8 \times 10^{-4}$. Its susceptibility at $\displaystyle 300$ K is :
Official answer
(2)
$\displaystyle 3.267 \times 10^{-4}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.