Question

3.
Assertion (A): The flow of a liquid, through a pipe, is most likely to be stream lined
when the diameter of the pipe, as well as the velocity of flow of the liquid, have very
large values.
Reason (R) : During stream lined flow, the velocity of the different liquid particles,
crossing a particular point, must keep on increasing continuously.​

Answer 1

Answer:

(c)

Explanation:

a is true but r is false

Answer 2

Both Assertion and Reason are FALSE !!

But why ?

• For determining whether fluid flow is streamline or turbulent, we need to check the Reynold's Number.

$\boxed{ \bf \: R = \dfrac{ \rho \times v \times d}{ \eta} }$

• With higher "v" and "d" , the Reynold's Number will increase and become > 2000, this will cause fluid flow to be turbulent.

• Hence, Assertion is false.

___________________

Definition of streamline flow:

• A type of fluid flow, in which all the particles of the fluid $pa{s}s$ through a particular point with the same velocity.

• Hence, the Reason is false.

$\star$ Hope It Helps.