Assertion: A thin stainless steel needle can lay floating on a still water surface.
Reason : Any object floats when the buoyancy

If both assertion and reason are true but the reason is the correct explanation of assertion.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

If both assertion and reason are true but the reason is not the correct explanation of assertion.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

If assertion is true but reason is false.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

If both the assertion and reason are false.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

If reason is true but assertion is false.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B If both assertion and reason are true but the reason is not the correct explanation of assertion.
A and R are true. But R does not explain A.
Explanation of A is that it is the surface tension of the water surface which is balancing the weight of the steel needle.

Suggest Corrections

Similar questions

\to τ = \to r \times \to F b u t \to τ \neq \to F \times \to r .

Read the assertion and reason carefully to mark the correct option out of the options given below :

(a) If both assertion and 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 explanation of the assertion.

(d) If the assertion and reason both are false.

(e) If assertion is false but reason is true.

Assertion: Acetic acid does not undergo haloform reaction.

Reason: Acetic acid has no alpha hydrogens.

Assertion (A): Steel is more elastic than rubber.

Reason (R) : Under a given deforming force, steel is deformed less than rubber.

N a_{2} C r_{2} O_{7}

N a_{2} C r_{2} O_{7}

Join BYJU'S Learning Program