A) \[0{}^\circ \]
B) \[45{}^\circ \]
C) \[90{}^\circ \]
D) \[180{}^\circ \]
E) any angle with which it is placed
Correct Answer: C
Solution :
Bismuth is a diamagnetic substance, so when placed in an external magnetic field it rotates such that its axis becomes perpendicular to the magnetic field.
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