. The stream of water flowing at high speed from a garden hose pipe tends to spread like a fountain when held


STATEMENT – 1

The stream of water flowing at high speed from a garden hose pipe tends to spread like a fountain when held vertically up, but tends to narrow down when held vertically down.

and

STATEMENT – 2

In any steady flow of an incompressible fluid, the volume flow rate of the fluid remains constant.

(A) 2 is a correct explanation for Statement – 1.

(B)  Statement – 1 is True, Statement – 2 is True; Statement – 2 is NOT a correct explanation for Statement– 1.

(C)  Statement – 1 is True, Statement – 2 is False.

(D)  Statement – 1 is False, Statement – 2 is True.

 

Best Answer

As the water stream moves up, its speed decreases (due to gravity) and since flow rate (= Av) remains constant, the area increases making it spread like a fountain. The reverse is true when it moves down.

Both Statements are correct and Statement–2 is a correct explanation of Statement–1.

(A)

 

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