AP EAPCET 2025 - 21st May Evening Shift | Fluid Mechanics Question 10 | Physics

A liquid drop of diameter $D$ splits into 3375 small identical drops. If $S$ is the surface tension of the liquid, then the change in the surface energy in the process is

$44 D^2 S$

$44 \pi D^2 S$

$56 D^2 S$

$56 \pi D^2 S$

AP EAPCET 2025 - 21st May Morning Shift

MCQ (Single Correct Answer)

-0

If water flows with a velocity of $20 \mathrm{cms}^{-1}$ in a pipe of radius 2 cm , then the flow is (The coefficient of viscosity of water is $10^{-3} \mathrm{~kg} \mathrm{~m}^{-1} \mathrm{~s}^{-1}$ and density of water is $10^3 \mathrm{~kg} \mathrm{~m}^{-3}$ )

turbulant

steady flow

non-viscous

unsteady

AP EAPCET 2024 - 23th May Morning Shift

MCQ (Single Correct Answer)

-0

Water flows from a tap of diameter 1.5 cm with $75 \times 10^{-5} \mathrm{~m}^3 \mathrm{~s}^{-1}$. Coefficient of viscosity of water is $10^{-3} \mathrm{~Pa}$. The flow is

turbulent with Reynold number less than 6000

steady flow with Reynolds number less than 2000

turbulent with Reynolds number greater than 6000

steady flow with Reynolds number more than 6000

AP EAPCET 2024 - 22th May Evening Shift

MCQ (Single Correct Answer)

-0

Two cylindrical vessels $A$ and $B$ of different areas of cross-section kept on same horizontal plane are filled with water to the same height. If the volume of water in vessel $A$ is 3 times the volume of water in vessel $B$, then the ratio of the pressures at the bottom of the vessels $A$ and $B$ is

$1: 1$

$1: 3$

$1: 9$

$1: 6$

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