MHT CET 2025 23rd April Evening Shift | Fluid Mechanics Question 16 | Physics

The amount of work done in blowing a soap bubble such that its diameter increases from $\mathrm{d}_1$ to $\mathrm{d}_2$ is ( $\mathrm{T}=$ surface tension of soap solution)

$\quad 4 \pi\left(\mathrm{~d}_2^2-\mathrm{d}_1^2\right) \mathrm{T}$

$\quad 8 \pi\left(\mathrm{~d}_2^2-\mathrm{d}_1^2\right) \mathrm{T}$

$\pi\left(d_2^2-d_1^2\right) \mathrm{T}$

$\quad 2 \pi\left(d_2^2-d_1^2\right) \mathrm{T}$

MHT CET 2025 23rd April Evening Shift

MCQ (Single Correct Answer)

-0

The energy needed for breaking a liquid drop of radius ' $R$ ' into 216 droplets, each of radius ' $r$ ' is ' $x$ ' times $T R^2$. The value of ' $x$ ' is [ $T=$ surface tension of the liquid].

$4 \pi$

$12 \pi$

$180 \pi$

$20 \pi$

MHT CET 2025 23rd April Morning Shift

MCQ (Single Correct Answer)

-0

The excess pressure inside first soap bubble is three times that of a second soap bubble. The ratio of volumes of the first to second bubble

$1: 3$

$1: 9$

$1: 27$

$27: 1$

MHT CET 2025 23rd April Morning Shift

MCQ (Single Correct Answer)

-0

A disc of paper of radius ' $R$ ' has a hole of radius ' $r$ '. It is floating on a liquid of surface tension ' T '. The force of surface tension on the disc is

$2 \pi \mathrm{~T}(\mathrm{R}-\mathrm{r})$

$2 \pi \mathrm{~T}(\mathrm{R}+\mathrm{r})$

$3 \pi \mathrm{TR}$

$4 \pi \mathrm{~T}(\mathrm{R}+\mathrm{r})$

PREVIOUS NEXT

MHT CET Subjects

Browse all chapters by subject

Chemistry

Physical Chemistry

Some Basic Concepts of Chemistry Atomic Structure States of Matter Thermodynamics Chemical Equilibrium Ionic Equilibrium Liquid Solution Redox Reactions Surface Chemistry Solid State Electrochemistry Chemical Kinetics Nuclear Chemistry

Inorganic Chemistry

Periodic Table and Periodicity Chemical Bonding and Molecular Structure Metallurgy Hydrogen and It's Compounds s-Block Elements p-Block Elements d and f Block Elements Coordination Compounds Environmental Chemistry

Organic Chemistry

IUPAC Nomenclatures General Organic Chemistry Isomerism Hydrocarbons Haloalkanes and Haloarenes Alcohol, Phenols and Ethers Aldehyde and Ketone Carboxylic Acids and Its Derivatives Compounds Containing Nitrogen Polymers Biomolecules Chemistry in Everyday Life Practical Organic Chemistry