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Assertion: A neddleplaced carefully on t...

Assertion: A neddleplaced carefully on the surface of water may float while a ball of the same material will always sink.
Reason: The buoyancy of an object depends both on the material and the shape of the object.

A

Statement I is true, statement II is true and Statement II is a correct explanation for Statement I.

B

Statement I is true, Statement II is true and Statement II is NOT the correct explanation for Statement I.

C

Statement I is true, Statement II is false.

D

Statement I is false, Statement II is true.

Text Solution

Verified by Experts

The correct Answer is:
C
When a needle is placed carefully on the surface of water, it floats on the surface of water due to the surf ace tension of water, which does not allow the needle to sink. In case of a steel ball, the surface tension of the water is not sufficient to keep it floating, so it sinks down.
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