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Statement-1: A thin stainless steel need...

Statement-1: A thin stainless steel needle can lay floating on a still water surface.
Statement-2: Any object floats when the buoyancy force balances the weight of the object.

A

If both Assertion & Reason are true and the reason is the correct explanation of the assertion.

B

if both assertion and reason are true but reason is not the correct expalanation of the assertion

C

if assertion is true , but reason is false

D

both assertion and reason are false statements.

Text Solution

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The correct Answer is:
B
A thin staniless stele needle on a still water may floats due to surface tenstion balanced the weight of the needle.
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These questions consist two statements each, printed as Assertion and reason, while answering these question you are required to choose any one of the following four responsis: (a) If both the assertion and reason are true and reason is a true explanation of the assertion. (b) If both the assertion and reason are true but the reason is not the correct explanation of assertion. (c ) If the assertion is true but reason is false. (d) If both the assertion and reason are false. Q. Assertion: A thin stainless steel needle can lay floating on a still water surface. Reason: Any object floats when the buoyance force balances the weight of the object.

Assertion : A thin staindess steel needle can by floating on a still water surface Reason : Any object floats when the bayancey force balace the weight of the object

A : The spiders and insects can run on the surface of water. R : Buoyant force balances the weight of insects.

Two needles are floating on the surface of water. A hot needle when touches wate 3r surface between the needles then they move

Whi does an object float or sink when placed on the surface of water?

An object of weight W has a uniform rectangular cross section of a x2a and density of 0.25g//cm^(3) part of it is immersed in water and the rectangle is tilted by 45^(underset(-)(@)) while one of its corners is just at the water surface find the torque of the buoyancy force to the centre of mass of the object.

Assertion: A needle placed carefully on the surface of water may float. Reason: A needle placed carefully on the surface of water may float due to the surface tension as upward forces due to surface tension balances the weight of the needle.

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