TG EAPCET 2024 (Online) 9th May Evening Shift | Fluid Mechanics Question 5 | Physics

The excess pressure inside a soap bubble of radius 0.5 cm is balanced by the pressure due to an oil column of height 4 mm . If the density of the oil is $900 \mathrm{~kg} \mathrm{~m}^{-3}$, then the surface tension of the soap solution is (Acceleration due to gravity $=10 \mathrm{~ms}^{-2}$ )

$9 \times 10^{-2} \mathrm{Nm}^{-1}$

$2.25 \times 10^{-2} \mathrm{Nm}^{-1}$

$4.5 \times 10^{-2} \mathrm{Nm}^{-1}$

$7 \times 10^{-2} \mathrm{Nm}^{-1}$

TG EAPCET 2024 (Online) 9th May Evening Shift

MCQ (Single Correct Answer)

-0

Water flows through a horizontal pipe of variable cross-section at the rate of $12 \pi$ litre per minute. The velocity of the water at the point, where the diameter of the pipe becomes 2 cm is

$6 \mathrm{~ms}^{-1}$

$8 \mathrm{~ms}^{-1}$

$4 \mathrm{~ms}^{-1}$

$2 \mathrm{~ms}^{-1}$

TG EAPCET 2024 (Online) 9th May Morning Shift

MCQ (Single Correct Answer)

-0

The height of water level in a tank of uniform cross-section is 5 m . The volume of the water leaked in 5 s through a hole of area $2.4 \mathrm{~mm}^2$ miade at the bottom of the tank is (Assume the level of the water in the tank remains constant and acceleration due to gravity $=10 \mathrm{~ms}^{-2}$ )

$90 \times 10^{-6} \mathrm{~m}^3$

$120 \times 10^{-6} \mathrm{~m}^3$

$80 \times 10^{-6} \mathrm{~m}^3$

$40 \times 10^{-6} \mathrm{~m}^3$

TS EAMCET 2023 (Online) 12th May Evening Shift

MCQ (Single Correct Answer)

-0

If the work done in blowing a soap bubble of radius $R$ is $W$, then the work done in blowing the soap bubble of radius $2 R$ is

6 W

12 W

4 W

2 W

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