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

A fluid of density '$$\rho$$' and viscosity '$$\eta$$' is flowing through a pipe of diameter '$$d$$', with a velocity '$$v$$'. Reynold number is

A
$$\frac{2 \mathrm{~d} \rho \mathrm{v}}{\eta}$$
B
$$\frac{\mathrm{d} \rho \mathrm{v}}{\eta}$$
C
$$\frac{\mathrm{d} \rho v}{\eta^2}$$
D
$$\frac{2 \eta \mathrm{dv}}{\rho}$$
2
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.
3
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
$$1: 27$$
4
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
$$\mathrm{R}=\mathrm{r}_1+\mathrm{r}_2$$
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