TS EAMCET · Physics · Mechanical Properties of Fluids
A glass capillary tube of inner diameter 0.28 \(\mathrm{mm}\) is lowered vertically into water in a vessel. The pressure to be applied on the water in the capillary tube so that water level in the tube is same as that in the vessel (in \(\mathrm{N} / \mathrm{m}^2\) ) is Surface tension of water \(=0.07 \mathrm{~N} / \mathrm{m}\) Atmospheric pressure \(=10^5 \mathrm{~N} / \mathrm{m}^2\)
- A \(10^3\)
- B \(99 \times 10^3\)
- C \(100 \times 10^3\)
- D \(101 \times 10^3\)
Answer & Solution
Correct Answer
(D) \(101 \times 10^3\)
Step-by-step Solution
Detailed explanation
Diameter \(d=0.28 \mathrm{~mm}=0.28 \times 10^{-3} \mathrm{~m}\) Radius \(r=\frac{d}{2}=0.14 \times 10^{-3} \mathrm{~m}\) Surface tension \(T=0.07 \mathrm{~N} / \mathrm{m}\) \[ T=\frac{r h d g}{2 \cos \theta} \] For water \(\theta=0^{\circ}\)…
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
- Steam of mass 60 g at a temperature \(100^{\circ} \mathrm{C}\) is mixed with water of mass 360 g at a temperature \(40^{\circ} \mathrm{C}\). The ratio of the masses of steam and water in equilibrium is (Latent heat of steam is \(540 \mathrm{cal} \mathrm{g}^{-1}\) and specific heat capacity of water is \(1 \mathrm{cal} \mathrm{g}^{-1}{ }^{\circ} \mathrm{C}^{-1}\) )TS EAMCET 2024 Medium
- A coil having 2000 turns is wound tightly in the form of a spiral with inner and outer radii \(1 \mathrm{~cm}\) and \(3 \mathrm{~cm}\), respectively. When a current \(\frac{1}{\pi} \mathrm{mA}\) passes through the coil, then the magnetic field at the centre is calculated be \(K \ln 3 \times 10^{-6} \mathrm{~T}\). The value of \(K\) isTS EAMCET 2021 Hard
- In Young's double slit experiment with light of wavelength \(\lambda\), the intensity of light at a point on the screen where the path difference becomes \(\frac{\lambda}{3}\) is
(I is intensity of the central bright fringe)TS EAMCET 2025 Medium - A cylindrical tube open at both ends has a fundamental frequency 'f' in air. The tube is dipped vertically in water so that half of it is in water. The new fundamental frequency isTS EAMCET 2022 Easy
- Interference fringes are obtained in a Young double slit experiment using beam of light consisting two wavelengths and . Bright fringes due to both wavelengths coincide at from the central maximum. If the separation between the slits is , then the distance between the screen and plane of the slits isTS EAMCET 2018 Hard
- In a photoelectric experiment, the slope of the graph drawn between stopping potential along y -axis and frequency of incident radiation along x -axis is (Planck's constant \(=6.6 \times 10^{-34} \mathrm{Js}\) )TS EAMCET 2025 Medium
More PYQs from TS EAMCET
- Three particles, each of mass , situated at the vertices of an equilateral triangle of side length . The only forces acting on the particles are their mutual gravitational forces. It is desired that each particle moves in a circle while maintaining the original separation . The initial speed that should be given to each particle isTS EAMCET 2022 Easy
- The magnetic induction and the intensity of magnetic field inside an iron core of an electromagnet are \(1 \mathrm{~Wb} \mathrm{~m}^{-2}\) and \(150 \mathrm{Am}^{-1}\), respectively. The relative permeability of iron is \(\left(\mu_0=4 \pi \times 10^{-7}\right.\) henry \(\left./ \mathrm{m}\right)\)TS EAMCET 2004 Easy
- A rectangular loop of length \(l\) and breadth \(b\) is placed at distance of \(x\) from infinitely long wire carrying current \(i\) such that the direction of current is parallel to breadth. If the loop moves away from the current wire in a direction perpendicular to it with a velocity \(v\), the magnitude of the emf in the loop is : ( \(\mu_0=\) permeability of free space \()\)TS EAMCET 2006 Hard
- A physical quantity \(X\) is given by \(X=\frac{2 k^3 l^2}{m \sqrt{n}}\). The percentage errors in the measurements of \(k, l, m\) and \(n\) are \(1 \%, 2 \%, 3 \%\) and \(4 \%\) respectively. The value of \(X\) is uncertain byTS EAMCET 2023 Easy
- In Young's double slit experiment, the \(10^{\text {th }}\) maximum of wavelength \(\lambda_1\) is at a distance of \(y_1\) from the central maximum. When the wavelength of the source is changed to \(\lambda_2, 5^{\text {th }}\) maximum is at a distance of \(y_2\) from its central maximum. The ratio \(\left(\frac{y_1}{y_2}\right)\) isTS EAMCET 2009 Easy
- A clock dial has point charges \(-\mathrm{q},-2 \mathrm{q},-3 \mathrm{q}, \ldots \ldots \ldots .-12 \mathrm{q}\) at the positions of the corresponding numbers on the dial respectively. The time at which the hour's hand points the direction of the net electric field at the centre of the dial is (Assume clock hands do not influence the net electric (field)TS EAMCET 2023 Medium