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1
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Water is flowing through a horizontal pipe in stream line flow. At the narrowest part of the pipe

A
velocity is maximum and pressure minimum.
B
pressure is maximum and velocity minimum.
C
both pressure and velocity are minimum.
D
both pressure and velocity are maximum.
2
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The excess of pressure in a first soap bubble is three times that of other soap bubble. Then the ratio of the volume of first bubble to other is

A
$$1: 3$$
B
$$27: 1$$
C
$$1: 9$$
D
$$1: 27$$
3
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The radii of two soap bubbles are $$r_1$$ and $$r_2$$. In isothermal condition they combine with each other to form a single bubble. The radius of resultant bubble is

A
$$\mathrm{R}=\frac{\mathrm{r}_1+\mathrm{r}_2}{2}$$
B
$$\mathrm{R}=\mathrm{r}_1\left(\mathrm{r}_1 \mathrm{r}_2+\mathrm{r}_2\right)$$
C
$$\mathrm{R}=\sqrt{\mathrm{r}_1^2+\mathrm{r}_2^2}$$
D
$$\mathrm{R}=\mathrm{r}_1+\mathrm{r}_2$$
4
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Under isothermal conditions, two soap bubbles of radii '$$r_1$$' and '$$r_2$$' combine to form a single soap bubble of radius '$$R$$'. The surface tension of soap solution is ( $$P=$$ outside pressure)

A
$$\frac{P\left(R^3+r_1^3+r_2^3\right)}{4\left(r_1^2-r_2^2+R^2\right)}$$
B
$$\frac{P^2+r_1^2+r_2^2}{4\left(r_1^2+r_2^2+R^2\right)}$$
C
$$\frac{P\left(R^3-r_1^3-r_2^3\right)}{4\left(r_1^2+r_2^2-R^2\right)}$$
D
$$\frac{P\left(R^2-r_1^2-r_2^2\right)}{4\left(r_1^3+r_2^3-R^3\right)}$$
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