MHT CET 2024 2nd May Morning Shift | Fluid Mechanics Question 47 | Physics

Glycerine of density $1.25 \times 10^3 \mathrm{~kg} / \mathrm{m}^3$ is flowing in conical shaped horizontal pipe. Crosssectional area of the pipe at its both ends is $10 \mathrm{~cm}^2$ and $5 \mathrm{~cm}^2$ respectively. Pressure difference at both the ends is $3 \mathrm{~N} / \mathrm{m}^2$. Rate of flow of liquid in the pipe is

$4 \times 10^{-5} \mathrm{~m}^3 / \mathrm{s}$

$2 \times 10^{-5} \mathrm{~m}^3 / \mathrm{s}$

$5 \times 10^{-5} \mathrm{~m}^3 / \mathrm{s}$

$6 \times 10^{-5} \mathrm{~m}^3 / \mathrm{s}$

MHT CET 2023 14th May Evening Shift

MCQ (Single Correct Answer)

-0

Two spherical soap bubbles of radii '$$a$$' and '$$b$$' in vacuum coalesce under isothermal conditions. The resulting bubble has a radius equal to

$$a+b$$

$$\frac{a+b}{2}$$

$$\sqrt{a^2+b^2}$$

$$\frac{a+b}{a b}$$

MHT CET 2023 14th May Evening Shift

MCQ (Single Correct Answer)

-0

1000 small water drops of equal size combine to form a big drop. The ratio of final surface energy to the total initial surface energy is

$$10: 1$$

$$1: 10$$

$$1000: 1$$

$$1: 1000$$

MHT CET 2023 14th May Evening Shift

MCQ (Single Correct Answer)

-0

It is easier to spray water to which soap is added because addition of soap to water

decreases surface tension of water

increases surface tension of water.

makes surface tension of water zero.

increases its density.

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