Which of the following statements is not correct about magnetic behaviour of substances ?
A. Diamagneti substances are repelled by an applied magnetic field.
B. Paramagnetic substances are attracted by and applied magnetic field.
C. Magnetic moment of n unpaired electrons is given by `mu=sqrt(n(n-2))` B.M.
D. Magnetic moment increases as the number of unpaired electrons increases.

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Correct Answer - C
`mu=sqrt(n(n+2))` B.M.

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