NEET · Physics · STD 11 - 9.1 fluid mechanics
Two non-mixing liquids of densities \(\rho \) and \(n \rho \,(n > 1)\) are put in a container. The height of each liquid is \(h.\) A solid cylinder of length \(L\) and density \(d\) is put in this container. The cylinder floats with its axis vertical and length \(\rho L (\rho < 1)\) in the denser liquid. The density \(d\) is equal to
- A \([2+(n+1)P]\rho \)
- B \([2+(n-1)P]\rho \)
- C \([1+(n-1)P]\rho \)
- D \([1+(n+1)P]\rho \)
Answer & Solution
Correct Answer
(C) \([1+(n-1)P]\rho \)
Step-by-step Solution
Detailed explanation
\(d = density\,of\,cylinder\) \(A = area\,of\,cross - section\,of\,cylinder\)
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 step down transformer connected to an ac mains supply of \(220\, \mathrm{~V}\) is made to operate at \(11 \,\mathrm{~V}, 44 \,\mathrm{~W}\) lamp. Ignoring power losses in the transformer, what is the current in the primary circuit? (In \(\mathrm{~A}\))NEET 2021 Medium
- A shell of mass \(m\) is at rest initially. It explodes into three fragments having mass in the ratio \(2: 2: 1\). If the fragments having equal mass fly off along mutually perpendicular directions with speed \(v\), the speed of the third (lighter) fragment is :NEET 2022 Hard
- Two hollow conducting spheres of radii \(R_{1}\) and \(R_{2}\) \(\left(R_{1}>>R_{2}\right)\) have equal charges. The potential would be:NEET 2022 Easy
- A room heater is rated 400 W, 220 V. If the supply voltage drops to 200 V, what will be the power consumed (approximately) ?NEET 2026 Medium
- A particle is released from height \(\mathrm{S}\) from the surface of the Earth. At a certain height its kinetic energy is three times its potential energy. The height from the surface of earth and the speed of the particle at that instant are respectively :NEET 2021 Medium
- The distance between the two plates of a parallel plate capacitor is doubled and the area of each plate is halved. If \(C\) is its initial capacitance, its final capacitance is equal toNEET 2022 Easy
More PYQs from NEET
- A body initially at rest and sliding along a frictionless track from a height \(h\) (as shown in the figure) just completes a vertical circle of diameter \(AB =D\) . The height \(h\) is equal to
NEET 2018 Medium - A tightly wound \(100\) turns coil of radius \(10 \mathrm{~cm}\) carries a current of \(7 \mathrm{~A}\). The magnitude of the magnetic field at the centre of the coil is (Take permeability of free space as \(4 \pi \times 10^{-7} \mathrm{SI}\) units):NEET 2024 Medium
- Zygotic meiosis is characteristic ofNEET 2017 Medium
- Which of the following amino acid is not optically active?NEET 2017 Medium
- A force defined by \(F=\alpha t^2+\beta t\) acts on a particle at a given time \(t\). The factor which is dimensionless, if \(\alpha\) and \(\beta\) are constants, is:NEET 2024 Medium
- Which of the following reaction(s) can be used for the preparation of alkyl halides ? \((I)\,\,CH_3CH_2OH + HCl \xrightarrow{{Anh.\,\,ZnC{l_2}}}\) \((II)\,\,CH_3CH_2OH + HCl \rightarrow\) \((III)\,\,(CH_3)_3COH + HCl \rightarrow\) \((IV)\,\,(CH_3)_2CHOH + HCl \xrightarrow{{Anh.\,\,ZnC{l_2}}}\)NEET 2015 Medium