KCET · Physics · Mechanical Properties of Fluids
Horizontal tube of non-uniform corss-section has radii of \(0.1 \mathrm{~m}\) and \(0.05 \mathrm{~m}\) respectively at \(\mathrm{M}\) and N. For a streamline flow of liquid the rate of liquid flow is
- A changing continuously with time
- B greater at \(M\) than at \(N\)
- C greater at \(N\) than at \(M\)
- D same at \(M\) and \(N\)
Answer & Solution
Correct Answer
(C) greater at \(N\) than at \(M\)
Step-by-step Solution
Detailed explanation
The velocity of flow will increase if cross-section decreases and vice-versa.
\(\text {ie, } \mathrm{A}_{1} \mathrm{v}_{1} =\mathrm{A}_{2} \mathrm{v}_{2}\)
\(\text {or } \mathrm{Av} =\text { constant }\)
Therefore, the rate of liquid flow will be greater at \(N\) than at \(M\).
\(\text {ie, } \mathrm{A}_{1} \mathrm{v}_{1} =\mathrm{A}_{2} \mathrm{v}_{2}\)
\(\text {or } \mathrm{Av} =\text { constant }\)
Therefore, the rate of liquid flow will be greater at \(N\) than at \(M\).
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 coin placed on a rotating turn table just slips if it is placed at a distance of \(4 \mathrm{~cm}\) from the centre. If the angular velocity of the turn table is doubled it will just slip at a distance ofKCET 2021 Easy
- In thermodynamic processes, which of the following statements is not true?KCET 2026 Easy
- Die input characteristics of a transistor in CE mode is the graph obtained by plottingKCET 2015 Easy
- A satellite is orbiting close to the earth and has a kinetic energy \( \mathrm{K} \). The minimum extra kinetic
energy required by it to just overcome the gravitation pull of the earth isKCET 2019 Hard - Pick out the statement which is incorrect.KCET 2015 Easy
- Two objects are projected at an angle \(\theta^{\circ}\) and \(\left(90-\theta^{\circ}\right)\), to the horizontal with the same speed. The ratio of their maximum vertical heights isKCET 2022 Medium
More PYQs from KCET
- \(2 \cos ^{-1} x=\sin ^{-1}\left(2 x \sqrt{1-x^2}\right)\) is valid for all values of ' \(x\) ' satisfyingKCET 2025 Medium
- Light of wavelength \( 600 \mathrm{~nm} \) is incident normally on a slit of width \( 0.2 \mathrm{~mm} \). The angular width of
central maxima in the diffraction pattern is (measured from minimum to minimum)KCET 2016 Medium - The velocity - time graph for two bodies A and B are shown. Then the acceleration of A and B are in the ratio:KCET 2015 Easy
- The effective resistance between \( \mathrm{P} \) and \( \mathrm{Q} \) for the following network is
KCET 2018 Medium - If \( y=(1+x)\left(1+x^{2}\right)\left(1+x^{4}\right) \), then \( \frac{d y}{d x} \) at \( x=1 \) isKCET 2014 Easy
- The correct order of electronegativities of \(\mathrm{N}, \mathrm{O}\), \(F\) and \(P\) isKCET 2012 Easy