MHT CET 2023 12th May Morning Shift | Fluid Mechanics Question 64 | Physics

A spherical drop of liquid splits into 1000 identical spherical drops. If '$$\mathrm{E}_1$$' is the surface energy of the original drop and '$$\mathrm{E}_2$$' is the total surface energy of the resulting drops, then $$\frac{E_1}{E_2}=\frac{x}{10}$$. Then value of '$$x$$' is

MHT CET 2023 12th May Morning Shift

MCQ (Single Correct Answer)

-0

The excess pressure inside a first spherical drop of water is three times that of second spherical drop of water. Then the ratio of mass of first spherical drop to that of second spherical drop is

1 : 3

1 : 6

1 : 9

1 : 27

MHT CET 2023 11th May Evening Shift

MCQ (Single Correct Answer)

-0

A liquid drop of radius '$$R$$' is broken into '$$n$$' identical small droplets. The work done is [T = surface tension of the liquid]

$$4 \pi \mathrm{R}^2\left(\mathrm{n}^{\frac{2}{3}}-1\right) \mathrm{T}$$

$$4 \pi R^2\left(n^{\frac{1}{3}}-1\right) T$$

$$4 \pi R^2\left(1-n^{\frac{1}{3}}\right) T$$

$$4 \pi \mathrm{R}^2\left(1-\mathrm{n}^{\frac{2}{3}}\right) \mathrm{T}$$

MHT CET 2023 11th May Evening Shift

MCQ (Single Correct Answer)

-0

A fluid of density '$$\rho$$' is flowing through a uniform tube of diameter '$$d$$'. The coefficient of viscosity of the fluid is '$$\eta$$', then critical velocity of the fluid is

inversely proportional to '$$\eta$$'

directly proportional to '$$\eta$$'

directly proportional to '$$\mathrm{d}$$'

directly proportional to '$$\rho$$'

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