STATEMENT-1: The stream of water flowing at h | vedclass

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Question

(B) $STATEMENT-1$ is True. When water flows vertically up,gravity acts against the motion,causing the velocity to decrease. By the equation of continu

Vedclass · Accepted Answer

$STATEMENT-1$ is True,$STATEMENT-2$ is True; $STATEMENT-2$ is $NOT$ a correct explanation for $STATEMENT-1$

Vedclass · Answer

(B) $STATEMENT-1$ is True. When water flows vertically up,gravity acts against the motion,causing the velocity to decrease. By the equation of continuity $(A_1v_1 = A_2v_2)$,as velocity $v$ decreases,the cross-sectional area $A$ must increase,causing the stream to spread. When held vertically down,gravity accelerates the water,increasing velocity and causing the stream to narrow.$STATEMENT-2$ is True. The equation of continuity $(A_1v_1 = A_2v_2)$ is a direct consequence of the conservation of mass for an incompressible fluid,which states that the volume flow rate remains constant.However,$STATEMENT-2$ explains the relationship between area and velocity,but the spreading or narrowing of the stream in $STATEMENT-1$ is primarily due to the change in velocity caused by gravity (acceleration/deceleration),not just the continuity equation alone. Thus,$STATEMENT-2$ is not the direct explanation for the phenomenon described in $STATEMENT-1$.

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