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प्रश्न
Two floating bottles with magnets repel each other at first, but attract when one magnet is reversed. What does this experiment demonstrate?
पर्याय
Contact forces require physical contact
Friction acts along surfaces
Non-contact forces can act without direct contact
Muscular force depends on body weight
MCQ
रिकाम्या जागा भरा
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उत्तर
Non-contact forces can act without direct contact
Explanation:
The change in motion of the bottles (from repulsion to attraction) occurs without any physical contact between them. This demonstrates that non-contact forces (magnetic force) can act across a distance and influence the motion of objects.
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