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JEE Main & Advanced Physics Magnetism Question Bank Self Evaluation Test - Magnetism and Matter

  • question_answer
    A watch glass containing some powdered substance is placed between the pole pieces of a magnet. Deep concavity is observed at the centre. The substance in the watch glass is

    A) iron 

    B) chromium

    C) carbon

    D) wood

    Correct Answer: A

    Solution :

    [a] Iron is ferromagnetic.


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