The susceptibility ($X_m$) and permeabil

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Target Exam

CUET

Subject

Physics

Chapter

Magnetism and Matter

Question:

The susceptibility ($X_m$) and permeability (μ) of a perfectly diamagnetic substance are:

Options:

$X_m=-1$ and $μ=0$

$X_m=0$ and $μ=1$

$X_m=1$ and $μ=-1$

$X_m=1$ and $μ=0$

Correct Answer:

$X_m=-1$ and $μ=0$

Explanation:

The correct answer is Option (1) → $X_m=-1$ and $μ=0$

for a perfect diamagnetic substance, $X_m=-1$

and,

Magnetic permeability, $μ=μ_0(1+X_m)$

$=μ_0(1-1)=0$