PhysicsJEE Main 21 Jan 2026, Shift 1·Q4·MCQ·Moderate

Mechanical Properties of Fluids · Fluid dynamics

Water flows through a horizontal tube as shown in the figure. The difference in height between the water columns in vertical tubes is 5 cm and the areas of cross-sections at

A

and

B

are

6\ \mathrm{cm^2}

and

3\ \mathrm{cm^2}

respectively. The rate of flow will be

\mathrm{cm^3/s}

. (take

g = 10\ \mathrm{m/s^2}

)

(1) $\dfrac{200}{\sqrt3}$
(2) $200\sqrt6$
(3) $200\sqrt3$
(4) $100\sqrt3$

We corrected a printing error in the original paper

Source printed “the area of cross-sections at $A$ and $B$ are”.

Video solution coming soon

We're animating every PYQ step by step. Subscribe to get them first.

See the full 21 Jan 2026, Shift 1 paper

Mechanical Properties of Fluids · Fluid dynamics

More on Fluid dynamics