AP EAMCET · PHYSICS · Mechanical Properties of Fluids
Energy needed in breaking a liquid drop of radius \(R\), into \(n\) smaller drops each of radius \(r\), is [T- Surface tension of the liquid]
- A \(\left(4 \pi r^2 n-4 \pi R^2\right) T\)
- B \(\left(\frac{4}{3} \pi r^3 n-\frac{4}{3} \pi R^3\right) T\)
- C \(\left(4 \pi R^2-4 \pi r^2\right) n T\)
- D \(\left(4 \pi R^2-n 4 \pi r^2\right) / T\)
Answer & Solution
Correct Answer
(A) \(\left(4 \pi r^2 n-4 \pi R^2\right) T\)
Step-by-step Solution
Detailed explanation
We have \(\Delta \mathrm{U}=\) (surface energy of bigger drop) - (surface energy of lower drop)…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- Find the gravitational force between two stones, each of mass \(2 \mathrm{~kg}\) and separated by a distance \(1 \mathrm{~m}\) in vacuum.AP EAMCET 2021 Easy
- A bullet of mass pierces through a plate of mass and then gets embedded into a second plate of mass as shown in the figure. Initially the two plates and are at rest and move with same velocity after collision. The percentage loss in the initial kinetic energy of the bullet when it is between the plates and is_______. (Neglect any loss of material of the plates during the collision)
AP EAMCET 2018 Hard - A radioactive substance has a half-life of \(10^8\) years and an activity of \(10^4 \mathrm{~Bq}\). The number of atoms of this substance present isAP EAMCET 2022 Easy
- The radii of curvature of a double convex lens are and . If the refractive index of the material of the lens is , the focal length of the lens is nearlyAP EAMCET 2022 Easy
- The focal length of a convex lens is \(f\). An object is placed at a distance \(x\) from its first focal point. The ratio of the size of the real image to that of the object isAP EAMCET 2021 Medium
- Two ions having masses in the ratio \(1: 1\) and charges \(1: 2\) are projected into uniform magnetic field perpendicular to the field with speeds in the ratio \(2: 3\). The ratio of the radii of circular paths along which the two particles move is :AP EAMCET 2003 Medium
More PYQs from AP EAMCET
- The variance of the following continuous frequency distribution is
\(\begin{array}{lllll} \hline \text { Class Interval } & 0-10 & 10-20 & 20-30 & 30-40 \\ \hline \text { Frequency } & 2 & 3 & 4 & 1 \\ \hline \end{array}\)AP EAMCET 2019 Easy - Which one of the following statements is correct with respect to basic character?AP EAMCET 2002 Medium
- A compound is formed by two elements A and B. Atoms of the element B (as anion) make ccp lattice and those of element \(A\) (as cation) occupy all tetrahedral voids. The formula of the compound isAP EAMCET 2025 Medium
- \(A\) force \(\mathbf{F}=(5 \hat{\mathbf{i}}+4 \hat{\mathbf{j}}) \mathrm{N}\) acts on a body and produces a displacement \(s=(6 \hat{\mathbf{i}}-5 \hat{\mathbf{j}}+3 \hat{\mathbf{k}}) \mathrm{m}\). The work done by the force isAP EAMCET 2020 Easy
- Five identical conducting plates, each of face area \(\mathrm{A}\) are placed parallel to each other with a separation of ' \(d\) ' between two adjacent plates as shown in the figure. The plates \(\mathrm{M}\) and \(\mathrm{N}\) are given charges \(Q_1\) and \(Q_2\) respectively and the remaining plates are neutral. If the outermost plates are grounded, the potential difference between the plates \(\mathrm{M}\) and \(\mathrm{N}\) is ____
AP EAMCET 2017 Hard - Three vectors of magnitudes \(a, 2 a, 3 a\) are along the directions of the diagonals of 3 adjacent faces of a cube that meet in a point. Then, the magnitude of the sum of those diagonals isAP EAMCET 2022 Medium