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Why the needle of iron swims on water surface when it is kept gently ?
PhysicsmediumBy: Abid Hussain According to Archimedes principle and we can note that the amount of water displaced by
AIt will remain under the water, when it will displace more water than its weight
Bthe density of needle is less than that of water
due to surface tension
Ddue to its shape
Correct Answer: C. due to surface tension
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