(B) the net elongation of the spring is $\frac{8 \pi \mathrm{R}^{3} \rho \mathrm{g}}{3 \mathrm{k}}$ (C) $2.0 \times 10^{-3} \mathrm{m}$ Fluid mechanics can broadly be divided into fluid dynamics and fluid statics. The sphere is broken into 27 identical spheres. $(\mathrm{D}) \rho \ell$. 12 Comments. For Complete study material & Video Lectures Download eSaral APP: https://esaral.com/app . The orifice is initially closed and water is filled in it up to height H. Now the top is completely sealed with a cap and the orifice at the bottom is opened. (D) $\frac{2 \pi R^{2} T}{r}$, If $\mathrm{r}=5 \times 10^{-4} \mathrm{m}, \rho=10^{3} \mathrm{kgm}^{-3}, \mathrm{g}=10 \mathrm{ms}^{-2}, \mathrm{T}=0.11 \mathrm{Nm}^{-1}$, the radius of the drop when it detaches from the dropper is approximately Fluid dynamics is the study of fluids in motion. 3. Download India's Best Exam Preparation App. The question which has been given only is JEE Advanced students, that is, to give you a cheeky language that is difficult to understand, and is able to practice and be able to do so. When the vessel is rotated about its own vertical axis, the liquid rises up near the wall. By Team eSaral. Several times in JEE Exams questions from the laws of thermodynamics were mixed with the calorimetry. The angle of contact between water and the wall of the capillary tube is $\theta$. Basically, you need to be thoroughly prepared. Click here to refer the most Useful Books of Physics. Water is also leaking out of a hole of area 1 cm2 at its button. Fluid Dynamics's Previous Year Questions with solutions of Fluid Mechanics from GATE ME subject wise and chapter wise with solutions. 1812 Views. ... Fluid Mechanics and Hydraulic Machines Hydrology Irrigation Environmental Engineering Always start solving questions of topics where you have already got correct answers in Mains Question Paper. JEE Main Physics syllabus is vast as it includes chapters from Class 11 and 12. This is not a crash course, we won't be leaving any question unturned. You can expect questions from fluid dynamics in JEE Advanced. A sequence of multi-conceptual approach is added in these following illustrations. (C) half-filled if $\rho_{\mathrm{C}}$ is more than 0.5 Sphere Q is dropped into a liquid of density 1.6 gm $\mathrm{cm}^{-3}$ and viscosity $\eta=2$poiseulles. In the following, state of the lift’s motion is given in List I and the distance where the water jet hits the floor of the lift is given in List II. This PDF file contains hand written notes on Fluid Dynamics that will help you revise quickly, refer to solved previous year questions and help score more marks in JEE Mains / Advanced exams. The water rises to a height h in the capillary tube above the water surface in the beaker. In the figure, the two circles represent the same oscillator but for different initial conditions, and $\mathrm{E}_{1}$ and $\mathrm{E}_{2}$ are the total mechanical energies respectively. Practice Now. A uniform capillary tube of inner radius r is dipped vertically into a beaker filled with water. A glass capillary tube is of the shape of truncated cone with an apex angle  so that its two ends have cross sections of different radii. By Team eSaral. Share This Post Facebook ... Test Series for JEE Main, JEE Advanced and NEET, Important questions of … Illustration (JEE Advanced) A cubical block of wood of specific gravity 0.5 and chunk of concrete of specific gravity 2.5 are fastened together. When dipped in water vertically, water rises in it to height h, where the radius of its cross section is b. Hey guys, in this post i am going to share one of the "BEST IITJEE PREPARATION BOOKS" for fluid mechanics, as fluids is one of the toughest chapter and important chapter for JEE advanced and JEE mains. So, the difference in height is given as follows, Q4: Water is flowing continuously from a tap having an internal diameter 8 × 10–3 m. The water velocity as it leaves the tap is 0.4 ms–1. JEE Main Physics solved questions on the topic Fluid Mechanics are available here. Marks 1 More. (C) If this experiment is performed in a lift going up with a constant acceleration, then h decreases., The forces acting on the solid ball when it is falling through a liquid is “mg” downwards, thrust by Archimedes principle upwards and the force due to the force of friction also acting upwards. JEE Advanced Analysis: difficulty level of paper: There are two Papers in JEE- Advanced Paper-1 and Paper-2, each containing three parts, Physics, Chemistry and Mathematics. If the surface tension of water is S, its density is , and its contact angle with glass is $\theta$, the value of h will be (g is the acceleration due to gravity), If the piston is pushed at a speed of 5 $\mathrm{mms}^{-1}$, the air comes out of the nozzle with a speed of It is falling through a liquid of density ρ2 (ρ2 < 1). Practice Now. Past Years Exams (JEE-Advanced,GATE-CE,GATE-ECE,GATE-EE,GATE-CSE,GATE-ME,GATE-IN) Questions with Solutions provider ExamSIDE.Com. (C) $\frac{2 \pi r^{2} T}{R}$ IIT JEE Main / Advanced Physics 2018 Fluid Mechanics – kind of objective questions to expect /practice tests. Fluid Mechanics Marathon for JEE Main/Advanced. The sphere is broken into 27 identical spheres. Ignore the mass of water in the meniscus. IIT-JEE. Practice Now. (D) $4.1 \times 10^{-3} \mathrm{m}$, After the drop detaches, its surface energy is Fluid mechanics and Thermal physics: Familiarize yourself with the calculations of work, heat, Carnot engine and its efficiency, internal energy and the laws of thermodynamics. The complete arrangement is placed in a liquid of density 2 and is allowed to reach equilibrium. The surface tension of water is $\sigma$. ADVANCED FLUID MECHANICS YEAR 4. If each of these acquires a terminal velocity v2, when falling through the same fluid, the ratio (v1/v2) equals, Q2: Spherical balls of radius R are falling in a viscous fluid of viscosity with a velocity v. The retarding viscous force acting on the spherical ball is, (a) directly proportional to R but inversely proportional to v, (b) directly proportional to both radius R and velocity v, (c) inversely proportional to both radius R and velocity v, (d) inversely proportional to R but directly proportional to velocity v, Answer: (b) directly proportional to both radius R and velocity v, Q3: A long cylindrical vessel is half-filled with a liquid. was conducted by NTA between 7 th and 9 th January 2020 in two shifts per day across 233 cities in the country and abroad. Continuity equation, variation of pressure with depth, and Bernoulli equation are important. The viscous force rapidly increases with velocity, attaining a maximum when the ball reaches the terminal velocity. They get arranged into an equilibrium state as shown in the figure with a tension in the string. Practise and understand the past year’s questions pattern to crack the examination. All the exercise of Chapter 13 - Fluid Mechanics questions with Solutions to help you to revise complete Syllabus and Score More marks. IIT JEE Mains Previous Year Questions Problem for Fluid Mechanics. 1. A liquid is kept in cylindrical vessel which is rotating along its axis. Fluid Mechanics – JEE Main Previous Year Questions with Solutions. JEE Main paper includes 25 questions in the Physics section that carry 4 marks each. The phase space diagram for one cycle of this system is, Two solid spheres A and B of equal volumes but of different densities dA and dB are connected by a string. (B) more than half-filled if $\rho_{\mathrm{c}}$ is more than 1.0 Gurukul helps the students in clearing and understanding each topic in a better way. (C) $\sqrt{\frac{p_{6}}{\rho_{0}}}$ [Neglect the effect of grav, If the radius of the opening of the dropper is r, the vertical force due to the surface tension on the drop of radius R (assuming r < 0). Save my name, email, and website in this browser for the next time I comment.   ∑ F =0. ... Fluid Mechanics. A person in a lift is holding a water jar, which has a small hole at the lower end of its side. Detailed solutions are given to all the questions at the end of each booklet. (D) h is proportional to contact angle $\theta$. menu ExamSIDE Questions. They are fully immersed in a fluid of density dF. When the lift is at rest, the water jet coming out of the hole hits the floor of the lift at a distance d of 1.2 m from the person. Which of the following statements is (are) true? [Take atmospheric pressure = $1.0 \times 10^{5} \mathrm{N} / \mathrm{m}^{2},$ density of water $=1000 \mathrm{kg} / \mathrm{m}^{3}$ and g = $10 \mathrm{m} / \mathrm{s}^{2}$ . If the height of the water in the tank remains steady, then this height is, Since the height of the water column is constant, Water inflow rate (Qin) = Water outflow rate (Qout), Q8: A submarine experiences a pressure of 5.05 x106 Pa at depth of d1 in a sea. A solid sphere of radius R and density  is attached to one end of a mass-less spring of force constant k. The other end of the spring is connected to another solid sphere of radius R and density 3. Really helpful X Exclude words from your search Put - in front of a word you want to leave out. (D) $8.1 \times 10^{-6} \mathrm{J}$, The phase space diagram for a ball thrown vertically up from ground is, The phase space diagram for simple harmonic motion is a circle centered at the origin. (C) the light sphere is partially submerged. (B) $3.3 \times 10^{-3} \mathrm{m}$ Then, Consider the spring-mass system, with the mass submerged in water, as shown in the figure. (B) $2 \pi \mathrm{RT}$ JEE Main & Advanced Physics Fluid Mechanics, Surface Tension & Viscosity Question Bank done Self Evaluation Test - Mechanical Properties of Fluids Total Question - 90 The spheres are connected by a massless string and placed in liquids $\mathrm{L}_{1}$ and $\mathrm{L}_{2}$ of densities $\sigma_{1}$ and $\sigma_{2}$ and viscosities $\eta_{1}$ and $\eta_{2}$, respectively. Two spheres P and Q of equal radii have densities $\rho_{1}$ and $\rho_{2}$, respectively. The ratio of the terminal velocities of P and Q is, A drop of liquid of radius R = $10^{-2}$ m having surface tension S = $=\frac{0.1}{4 \pi} \mathrm{Nm}^{-1}$ divides itself into K identical drops. (A) $\sqrt{\frac{\rho_{\mathrm{a}}}{\rho_{\ell}}}$ Find all the NEET Physics Important Questions from the chapter Fluid Mechanics with detailed solution. JEE Advanced 2019 Physics Sample Papers from chapter Fluid Mechanics , Physics video lecture of 11 , prepared by the experienced faculty. Find the fall in height (in mm) of water level due to opening of the orifice. JEE Main Paper does not follow a definite trend when it comes to the type of questions asked or important topics. This document is highly rated by Class 11 students and has been viewed 35312 times. ExamSIDE.Com. Fluid Dynamics and Elasticity- Not very important but few easy questions come for sure. Translation dictionaries are not permitted, but an Englishdictionary may be borrowed from the invigilator on request. (D) $8 \mathrm{ms}^{-1}$, If the density of air is $\rho_{\mathrm{a}}$ and that of the liquid $\rho_{\ell}$, then for a given piston speed the rate (volume per unit time) at which the liquid is sprayed will be proportional to Find the ratio $\mathrm{n}_{\mathrm{B}} / \mathrm{n}_{\mathrm{A}},$ where $\mathrm{n}_{\mathrm{A}}$ and $\mathrm{n}_{\mathrm{B}}$ are the number of moles of air in bubbles A and B, respectively. Practice Important Questions on Kinematics for JEE Advanced. When it goes further to a depth of d2, it experiences a pressure of 8.08 x 106 Pa. Then d1 – d2 is approximately (density of water = 103 ms-2 and acceleration due to gravity = 10 ms-2), Q9: Water from a pipe is coming at a rate of 100 litres per minute. If sphere P alone in $\mathrm{L}_{2}$ has terminal velocity and Q alone in $\mathrm{L}_{1}$ has terminal velocity , then, Consider two solid spheres P and Q each of density 8 gm $\mathrm{cm}^{-3}$ and diameters 1 cm and 0.5 cm, respectively. (C) $5.4 \times 10^{-6} \mathrm{J}$ (A) $2 \pi r T$ (D) the light sphere is completely submerged. Sphere P is dropped into a liquid of density 0.8 gm $\mathrm{cm}^{-3}$ and viscosity $\eta=3$ poiseulles. (C) $2 \mathrm{ms}^{-1}$ They float in equilibrium with the sphere P in $\mathbf{L}_{1}$ and sphere Q in $\mathrm{L}_{2}$ and the string being taut (see figure). GATE ME. questions r good but it would be nice if there r some more qns. To sum things up, Mechanics for JEE Advanced is an important part of physics which is used almost everywhere and hence one ought to be good at it. IIT-JEE. September 14, 2019. Some of the fields where fluid dynamics is applied are meteorology, oceanography, aeronautical engineering, the study of blood flow and many more. (A) more than half-filled if $\rho_{\mathrm{c}}$ is less than 0.5 (A) $1.4 \times 10^{-6} \mathrm{J}$ (A) For a given material of the capillary tube, h decreases with increase in r Now for the short recap, discussion would be through 5 important questions of Mechanics for IIT-JEE. The JEE (Main) Examination for B. E. /B. You can also check our topic wise questions. JEE Advanced Questions - Fluid Mechanics - Part 1 - YouTube The question bank consists of Answer key and solutions to all the problems with … ... For getting an idea of the type of questions asked, refer the Previous Year Question Papers. Tech. The liquid rises at the sides. 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