NEET 2011 Physics question
Not in JEE Advanced syllabus
There are four light-weight-rod samples A, B, C, D separately suspended by threads. A bar magnet is slowly brought near each sample and the following observations are noted : (i) A is feebly repelled (ii) B is feebly attracted (iii) C is strongly attracted (iv) D remains unaffected Which one of the following is true ?
Answer: (1)
Solution
Diamagnetic substances are feebly repelled by a magnet (A is diamagnetic), paramagnetic substances are feebly attracted (B is paramagnetic), ferromagnetic substances
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