Streamlines and Fluid Velocity – Rankers Physics

Fluid Dynamics: Practice Problem & Solution

Assertion (A): In streamline flow streamlines never intersect each other. Reason (R): If streamline intersect then their must two velocities of fluid particle at the point of intersection, which is impossible.  
(1) Both (A) & (R) are true and the (R) is the correct explanation of the (A)
(2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(3) (A) is true but (R) is false
(4) Both (A) and (R) are false

Solution Explained:

To solve this problem, we apply the core principles of Fluid Dynamics. Understanding the underlying formula is key to arriving at the correct answer below:

Assertion (A) is true by definition of streamline flow.


Reason (R) is true because intersection would imply multiple velocity vectors at a single point, which is physically impossible.


(R) correctly explains (A).

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