A) 1 and 0
B) 0 and 1
C) -1 and 0
D) -1 and 1
Correct Answer: C
Solution :
For a perfectly diamagnetic substance \[B={{\mu }_{0}}(H+I)=0\] \[\Rightarrow \] \[I=-H\] \[\therefore \] \[{{\chi }_{m}}=\frac{I}{H}=-1\] and \[{{\mu }_{r}}=1+{{\chi }_{m}}=1-1=0\] \[\therefore \] \[\mu ={{\mu }_{0}}{{\mu }_{r}}=0\]
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