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प्रश्न
You are provided with two similar bars, one is a magnet and the other is a soft iron. How will you distinguish between them without the use of any other magnet or bar?
[Hint : A magnet when suspended freely will rest only in the north-south direction, but the soft iron bar will rest in any direction]
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उत्तर
A magnet when suspended freely will rest only in north-south direction, but the soft iron bar will rest in any direction.
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