MHT CET · Physics · Mechanical Properties of Fluids
An incompressible fluid flows steadily through a cylindrical pipe having radius \(R\) at point \(A\) and \(\left(\frac{R}{3}\right)\) at point \(B\) further along the direction of flow of liquid. If the velocity at point A is ' V ' then that at point \(B\) is
- A \(\frac{V}{9}\)
- B \(\frac{v}{3}\)
- C 3V
- D 9V
Answer & Solution
Correct Answer
(D) 9V
Step-by-step Solution
Detailed explanation
\(A_A v_A = A_B v_B\) \(\pi R^2 V = \pi \left(\frac{R}{3}\right)^2 v_B\)
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
- A body of mass \(m\) is dropped from a height \(\frac{R}{2}\), from the surface of earth where \(R\) is radius of earth. Its speed when it will hit the earth's surface is \(\left(v_e=\right.\) escape \(v\) elocity from earth' surface)MHT CET 2022 Easy
- Choose the correct relation between polarisation 'P' and electric susceptibility \(^{4} \chi_{e}{ }^{\prime}\) of dielectric material. \((\mathrm{E}=\) electric field \()\)MHT CET 2020 Easy
- In a \(\mathrm{L}-\mathrm{R}\) circuit, the inductive reactance is equal to the resistance ' \(R\) ' in the circuit. An emf \(\mathrm{E}=\mathrm{E}_0 \cos \omega \mathrm{t}\) is applied to the circuit. The power consumed in the circuit isMHT CET 2023 Medium
- On replacing a thin film of mica of thickness \(12 \times 10^{-5} \mathrm{~cm}\) in the path of one of the interfering beams in Young's double slit experiment using monochromatic light, the fringe pattern shifts through a distance equal to the width of bright fringe. If \(\lambda=6 \times 10^{-5} \mathrm{~cm}\), the refractive index of mica isMHT CET 2023 Hard
- The magnetic flux near the axis and inside the air core solenoid of length \(60 \mathrm{~cm}\) carrying current ' \(I\) ' is \(1.57 \times 10^{-6} \mathrm{~Wb}\). Its magnetic moment will be \(\left[\mu_0=4 \pi \times 10^{-7}\right.\), SI unit and cross sectional area is very small as compared to length of solenoid.]MHT CET 2021 Medium
- To get the truth table shown, from the following logic circuit, the Gate \(\mathrm{G}\) should be
\(\begin{array}{|c|c|c|}\hline\mathrm{A} & \mathrm{B} & \mathrm{Y} 0 & 0 & 0 0 & 1 & 0 1 & 0 & 1 1 & 1 & 1\\\hline\end{array}\)MHT CET 2023 Medium
More PYQs from MHT CET
- A parallel plate capacitor has uniform electric field 'E' in the space between the
plates. If the distance between plates is 'd' and area of each plate is 'A', the energy
stored in the capacitor is \(\left(\epsilon_{0}=\right.\) permittivity of free space \()\)MHT CET 2020 Easy - What is the solubility of a gas in water at \(25^{\circ} \mathrm{C}\) if partial pressure is \(0.18 \mathrm{~atm}\) ?
\(\left(\mathrm{K}_{\mathrm{H}}=0.16 \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{~atm}^{-1}\right)\)MHT CET 2023 Medium - The critical angle for light going from medium ' \(\mathrm{x}\) ' to medium ' \(Y\) ' is \(\theta\). The speed of light in medium ' \(\mathrm{x}\) ' is ' \(\mathrm{V}_{\mathrm{x}}\) '. The speed of light in medium ' \(\mathrm{Y}\) ' isMHT CET 2021 Easy
- \(\int_{0}^{\frac{\pi}{2}} \frac{1-\cot x}{\operatorname{cosec} x+\cos x} d x=\)MHT CET 2020 Easy
- Calculate the edge length of unit cell of metal which crystallises to bcc structure.
(Radius of metal atom \(=173 \mathrm{pm}\) )MHT CET 2023 Medium - A round table conference is to be held amongst 20 countries. If two particular delegates wish to sit together, then such arrangements can be done in ways.MHT CET 2022 Medium