MCQ
When a magnet is placed on a plastic plate with common pins spread on it, then what will happen:
- APins stick all around the magnet.
- BPins stick at the middle of the magnet.
- ✓Pins stick at the ends of the magnet.
- DNone of the above.
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S.No.
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Column$-I$
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S.No.
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Column$-II$
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$a.$
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Aquatic animals
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$1.$
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Sail boat
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$b.$
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Mountaineers
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$2.$
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Soot and dust
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$c.$
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Factories
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$3.$
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Oxygen cylinders
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$d.$
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Wind
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$4.$
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Dissolved oxygen
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