Statement-A : Magnetic susceptibility of an ideal superconductor is -1.
Statement-B : Magnetic susceptibility of an empty space (no matter) is zero.
Statement-C : Relative permeability of an empty space is zero.

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A and B are true

Only C is true

Only B is true

Only A is true

answer is A.

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Detailed Solution

Ideal super conductor is a perfect diamagnetic substance $Ψ = - 1$
$\frac{F o r e m p t y s p a c e}{μ_{r} = 1}$
$μ_{r} = (1 + Ψ)$
$\frac{F o r e m p t y s p a c e}{\Rightarrow 1 = 1 + Ψ \Rightarrow Ψ = 0}$

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