TS EAMCET · Physics · Mechanical Properties of Fluids
What is the rate at which a trapped bubble of \(2 \mathrm{~mm}\) diameter rises slightly through a solution of density \(13.6 \times 10^3 \mathrm{~kg} / \mathrm{m}^3\) and coefficient of viscosity 1.5 centipoise? Assume, the density of air is negligible and \(g=10 \mathrm{~m} / \mathrm{s}^2\).
- A \(20 \mathrm{~m} / \mathrm{s}\)
- B \(2 \mathrm{~m} / \mathrm{s}\)
- C \(0.2 \mathrm{~m} / \mathrm{s}\)
- D \(0.02 \mathrm{~m} / \mathrm{s}\)
Answer & Solution
Correct Answer
(A) \(20 \mathrm{~m} / \mathrm{s}\)
Step-by-step Solution
Detailed explanation
Emperical formula for velocity of small bubbles rising through a fluid is \[ v_{\text {terminal }}=1.15\left(\frac{g d\left(\rho_f-\rho_g\right)}{\eta_f}\right) \times 10^{-2} \] where, \(d=\) mean diameter, \(\rho_f=\) density of fluid, \(\rho_g=\) density of gas of bubble and…
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
- If the dielectric constant of a substance \(K=\frac{4}{3}\), then the electric susceptibility \(\chi\) in terms of vacuum permittivity \(\varepsilon_0\) isTS EAMCET 2020 Medium
- \(L C R\) circuit, the resonance frequency of circuit increases two times of the initial circuit by changing \(C\) and \(C^{\prime}\) and \(R\) from \(100 \Omega\) to \(400 \Omega\), while the inductance was kept the same. The ratio \(C / C^{\prime}\), isTS EAMCET 2019 Medium
- The path difference between two particles of a sound wave is 50 cm and the phase difference between them is \(1.8 \pi\). If the speed of sound in air is \(340 \mathrm{~ms}^{-1}\), the frequency of the sound wave isTS EAMCET 2024 Easy
- Consider a radioactive nuclide which follow decay rate given by \(A(t)=A_0 2^{\left(t / t_0\right\}}\), where \(A(t)\) is the fraction of radioactive material remaining after time \(t\) from the initial \(A_0\) at zero time. Let \(A_1\) be the fraction of original activity which remains after 120 hours. Likewise \(A_2\) is the fraction of original activity remaining after 200 hours. If \(\frac{A_2}{A_2}=1.6\), then the half-life \(\left(t_0\right)\) will beTS EAMCET 2018 Medium
- For an n-p-n transistor structure which of the following statements is NOT true?TS EAMCET 2022 Easy
- For the circuits \(A\) and \(B\) as shown in the figure, identify the correct option.
TS EAMCET 2019 Easy
More PYQs from TS EAMCET
- A metal disc of radius \(30 \mathrm{~cm}\) rotates with a constant angular velocity \(\omega=100 \mathrm{rad} / \mathrm{s}\) about its axis. Find the magnitude of potential difference between the centre and the rim of the disc of external uniform magnetic field of induction \(\mathrm{B}=4 \mathrm{mT}\) is directed perpendicular to the disc.TS EAMCET 2022 Medium
- The operation of a nuclear reactor is said to be critical when the value of neutron multiplication factor \(K\) isTS EAMCET 2024 Easy
- A thin film of water is formed between two straight parallel wires each of length 8 cm separated by distance of 0.6 cm. The work done to increase the distance between the wires to 0.8 cm is
(Surface tension of water \(=0.07 \mathrm{Nm}^{-1}\) )TS EAMCET 2025 Medium - The efficiency of a bulb of power 60 W is \(16 \%\). The peak value of the electric field produced by the electromagnetic radiation from the bulb at a distance of 2 m from the bulb is \(\left(\frac{1}{4 \pi \epsilon_0}=9 \times 10^9 \mathrm{Nm}^2 \mathrm{C}^{-2}\right)\)TS EAMCET 2024 Hard
- When \(Q_1\) amount of heat is supplied to a monatomic gas, the work done by the gas is \(W\). When \(Q_2\) amount of heat is supplied to a diatomic gas, the work done by the gas is \(2 W\). Then \(Q_1: Q_2=\)TS EAMCET 2024 Hard
- The initial and final velocities of a body projected vertically from the ground are \(20 \mathrm{~ms}^{-1}\) and \(18 \mathrm{~ms}^{-1}\) respectively. The maximum height reached by the body is (Acceleration due to gravity \(=10 \mathrm{~ms}^{-2}\) )TS EAMCET 2025 Easy