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NEET-XII-Physics

37: Magnetic Properties of Matter

with Solutions - page 2
Qstn# iii-3 Prvs-QstnNext-Qstn
  • #3
    The permanent magnetic moment of the atoms of a material is zero. The material
    (a) must be paramagnetic
    (b) must be diamagnetic
    (c) must be ferromagnetic
    (d) may be paramagnetic
    digAnsr:   b
    Ans : (b) must be diamagnetic
    Paramagnetic and ferromagnetic materials have non zero permanent magnetic moment on their own. Only atoms of diamagnetic materials have zero permanent magnetic moment. Hence,
    (b) is correct.
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