We have seen, how a liquid rises up into a capillary tube, dipped into it, until the weight of the liquid in the tube is just balanced by the force due to its surface tension. MECHANICS OF SOLIDS Download the free Pdf sheet of list of physics formulas class 11 for IIT JEE & NEET For chapter-Surface Tension. From JEE MAIN and JEE ADVANCE preparation to NEET preparation, most competitive exams can be cracked with this app. It is measured in terms of force of surface tension. Pradeep Kshetrapal Notes For Class 12. These notes are useful for board as well as iit jee. When a fluid such that a velocity gradient is set up within it, forces act within the fluid so as to prevent the velocity gradient from existing. Download Pdf. become concave), the air-liquid surface increases and, as the liquid rises in the tube, the glass-liquid surface increases, the air-glass surface decreasing by an equal amount. And this fluid, whatever it is — oil or molasses or even water — the fluid will flow faster. StudyAdda offers free study packages for AIEEE, IIT-JEE, CAT, CBSE, CMAT, CTET and others. In fact, the greater the viscosity, the more slowly the liquid flows. 1.0.13 surface tension theory 1 PDF Download; 1.0.14 Thermodynamics PDF Download; ... Download Pradeep Kshetrapal sir notes for Physics IIT JEE. The SI units of viscosity equal 10 poise. A metal ball A (density 3.2 g/cc) is dropped in water, while another metal ball B (density 6.0 g/cc) is dropped in a liquid of density 1.6 g/cc. We have three surface of separation to consider when a capillary tube is immersed in a liquid viz., (i) an air-liquid surface (ii) an air-glass surface and (iii) a glass-liquid surface each having its own surface tension, difference from the others, and equal to its free surface energy per unit area. Free PDF Download of JEE Main Experimental Skills Revision Notes of key topics. Download Surface Tension and Viscosity (Liquid) NOTES by MOTION for Jee Mains & Jee Advanced (IIT JEE) exam preparation. T (surface tension) = F/2L. Useful For: JEE Main. When soap is mixed with water, the surface tension of water decreases. Physics Handwritten Notes For Class 11 If, for a sphere, viscous force becomes equal to the net weight acting downward, the velocity of the body becomes constant and is known as termination velocity. Save my name, email, and website in this browser for the next time I comment. Viscosity is a “measure of a fluid’s resistance to flow,” a measure of a fluid’s resistance to flow. In such cases, solids do not get "wet". Whether you know it or not, most compounds in their solid-state are denser than their liquid state, but water floats. Physics Errorless PDF is for Preparing some of the toughest exams in the country comes in handy with this app. It’s talking about as molasses gets colder in January, it is more viscous and, therefore, flows more slowly. Thus, the surface energy of the air-liquid and the, A meniscus drop of radius 1 cm is sprayed into 10, If a number of little droplets of water, all of the same radius, coalesce to form a single drop of radius R, show that the rise in temperature of water will be given by θ = 3T/J (1/r - 1/R) × 10, Le the number of little droplets be n and the radius of each droplet r. Then the surface area of all the droplets = n4, And therefore, decrease in surface area = n4, This heat is obviously taken up by the single drop formed of volume 4/3 ΠR, where h is a constant called co-efficient of viscosity. The free surface of a liquid contracts so that its exposed surface area is a minimum, i.e., it behaves as if it were under tension, somewhat like a stretched elastic membrane. Once you understand the concepts even advanced problems will be easy to solve. JEE (Main & Advanced) Physics Surface Tension-Notes was published in 2014. These notes are arranged chapterwise. Consider a wire frame (see the adjacent figure) equipped with a sliding wire AB. Simple Harmonic Motion. Calculate the horizontal force needed to move the plate with a speed of 0.040 m/s. Academic team of Entrancei prepared short notes and all important Physics formulas and bullet points of chapter Surface Tension (class-11 Physics) . Also, the surface tension decreases with increase in temperature. Desclamair: Ocean of notes is not the original publisher or owner of these Notes /Books/Study Materials. For a soap bubble in air, there are two surfaces. A force F has to be applied to hold the wire in place. These notes are completely free for you and you can download it in pdf format. To calculate this pressure difference, let's first consider an air bubble inside a liquid. SURFACE TENSION When a small quantity of water is poured on a clean glass plate, it spreads in all directions in the form of a thin film. (in Joule per calorie). Surface tension is defined as the force per unit length acting perpendicular on an imaginary line drawn on the liquid surface, tending to pull the surface apart along the line. If the pressure difference is Δp, then the work done to increase the radius of the bubble from r to  So, that is how much energy or how much force do we need so that these molecules will start to pull away from each other so that we can go right through the surface of the water. subject, The free surface of a liquid contracts so that its exposed surface area is a minimum, i.e., it behaves as if it were under tension, somewhat like a stretched elastic membrane. From JEE MAIN and JEE ADVANCE preparation to NEET preparation, most competitive exams can be cracked with this app. Contact Us | Candidates can download notes as per their requirements from the links given below. If such a liquid is poured into a solid tube, it will have a concave meniscus. And here’s what’s happening. Also Check our expert JEE NEET Study Material Segment. these list of physic formula of class 11 chapter Surface Tension is useful and highly recommended for quick revision and final recap of chapter … We will soon update bansal question bank and problem package pdf for easy of IIT JEE preparation. Surface tension of a liquid Surface tension is the property of the free surface of a liquid at rest to behave like a stretched membrane in order to acquire minimum surface area. It has collective extracts from many books – you don’t need to read many books. The CGS unit of coefficient of viscosity y is poise, its dimension is ML, x is the distance of the free surface with respect to the fixed surface, When a smooth sphere of radius r moves with a velocity v through a fluid of viscosity, , the viscous force opposing the motion of the sphere is. A metal plate 0.04 m2 in area is lying on a liquid layer of thickness  Notes for Surface Tension and Viscosity chapter of class 11 physics. A film of liquid is formed on it. Download Pdf. The liquid thus just spreads over the walls of the tube at the top and its meniscus acquires a new radius of curvature R', such that R'l = 2T/ρg, or that R'l = R.h = a constant. Two molecules are separated an appreciable distance apart. The pressure below the meniscus will be (p0 - 2T/r). Franchisee | , Tutor log in | Now, as the plane liquid surface in the tube acquires a curvature, (i.e. On either side of an imaginary line drawn on the free surface of a liquid, the direction of this force is perpendicular to the line and tangential to the free surface of liquid. Bansal Classes Study Material {PDF} Bansal Classes Study Material The syllabus prescribed by the CBSE is the main material for the For Jee Main which consists of three sections Physics, Chemistry, and Math. All the important models will be discussed in detail and would be helpful for all aspirants preparing for IIT-JEE. Email, Please Enter the valid mobile 1. number, Please choose the valid Solved Examples on Fluid Mechanics Problem 1 :-... About Us | 4/3 ΠR3 = n 4/3 Πr3        or     r = R/(n)1/3, => E = 4 ΠR2T (n1/3- 1) = 4 × 3.14 × (1 × 10-2)2 × 435 × 10-3(102- 1), If a number of little droplets of water, all of the same radius, coalesce to form a single drop of radius R, show that the rise in temperature of water will be given by θ = 3T/J (1/r - 1/R) × 10-3 where T is the surface tension of water and J, the mechanical equivalent of heat. It is dipped in a soapy water. It could be a lot of things that you think of when we think of viscosity. Learn to Create a Robotic Device Using Arduino in the Free Webinar. Disclaimer: All information’s and bansal classes study material free download pdf available on this website or the links provided on the site are for educational and study purposes only. This PDF file contains hand written notes on Surface Tension that will help you revise quickly, refer to solved previous year questions and help score more marks in JEE Mains / Advanced exams. It could be oil. If q be the angle of contact between the liquid and the tube, and R, the radius of liquid meniscus in the tube, we have r = R cos q, where r is the radius of the tube; so that above relation now becomes, where h is the height of the liquid column in the tube. Consider the equilibrium of a hemispherical portion of a liquid bubble of radius R and surface tension T as shown in the figure. Candidates may refer this study material for their IIT JEE exam preparation. JEE Advance. Longitudinal and transverse waves, speed of a wave. Surface Tension Problems. (c) the liquid is depressed in a capillary tube made of that solid. IIT JEE ; Power Point Presentation ... Download Editable and Pdf files for Exhaustive Theory Notes and Question Bank of Various Exams. Class 12, etc. This downloadable free PDF of study material benefit candidates in addition to classroom coaching. Now with the tube sufficiently longer than h, it is the value of h alone that changes to satisfy the above relation for T. But if the tube be smaller than the calculated value of h, the only variable in the above relation is. Candidates can download notes as per their requirements from the links given below. Surface tension is the property of a liquid by virtue of which its free surface behaves like a stretched membrane and supports, comparatively heavier objects placed over it. For a solid-liquid pair having acute (<90º) angle of contact. It’s a nice chemistry “joke” is what it is. Download Chapter wise Pradeep Kshetrapal notes of Physics. Public Notice: Rescheduling of JOINT ENTRANCE EXAMINATION JEE (Main) April -2020 Examination, Also read: Heat-2 ( Thermodynamics ) NOTES for IIT JEE 2020 pdf free download, for Detailed Jee Mains physics 2020 syllabus: click here, for Detailed Jee advanced physics 2020 syllabus : click here, Also read: Current Electricity NOTES for IIT JEE 2020 pdf free download, Also read: ALTERNATING CURRENT (AC) NOTES for IIT JEE 2020 pdf. The user move the bubble around while making observations of size versus depth. Two soap bubbles of different radii (r, R: r < R) are connected by means of a tube. JEE Physics Study Material JEE Chemistry Study Material JEE Maths Study Material Download Pdf. , the meniscus will be concave, for illustration: at a water-glass interface. This water strider is kind of floating or using the idea of surface tension to help it stay on top of the water. In other words, the energy required to raise the liquid in the capillary tube is obtained from the surface energy of the air-glass surface. Here you will get complete Surface Tension Notes. Practice JEE Main Physics Revision Notes solved by our expert teachers helps to score good marks in IIT JEE Exams. If the pressure difference is, p, then the work done to increase the radius of the bubble from r to. And since l is smaller than R' > R, i.e., the meniscus becomes less curved. What is the surface energy of an air bubble inside a soap solution? Required fields are marked *. The file is available in PDF format. Consistent focused well-coordinated course curriculum. It depends on temperature. If the area of the liquid surface has to be increased, work has to be done against the force of surface tension. Now, as the plane liquid surface in the tube acquires a curvature, (i.e. Surely read from Pradeep sir's note, Pradeep sir current electricity is very well organized, you can meet Pradeep sir from here. This happens when the force of cohesion between two liquid molecules is less than force of adhesion between the liquid and the solid. Simple Harmonic Motion. Waves. So that’s an idea of viscosity. RD Sharma Solutions | Pradeep kshetrapal notes for iit jee. What is Surface Tension? This force is due to a property called viscosity. You might like to refer Solved Examples on Fluid Mechanics. Candidates may refer this study material for their IIT JEE exam preparation. Basic Accounting Concepts Notes; Communication Systems Book Vol – 1; Unit And Dimension NOTES for IIT JEE 2020 pdf free download; Surface Tension and Viscosity (Liquid) NOTES for IIT JEE 2020 pdf free download “Surface tension is the property of a liquid by virtue of which its free surface behaves like a stretched membrane and supports, comparatively heavier objects placed over it”. Use Coupon: CART20 and get 20% off on all online Study Material, Complete Your Registration (Step 2 of 2 ), Free webinar on Robotics (Block Chain) Learn to create a Robotic Device Using Arduino, Simulation for Size of Bubble as a Comparison With Depth, Rise of Liquid in a tube of Insufficient Length, Energy Required to Raise a Liquid in a Capillary tube. Common examples of adsorbents are clay, silica gel, colloids, metals etc. The liquid surfaces get curved downward in contact with a solid. Adsorption is defined as the deposition of molecular species onto the surface. E = T × A = 4Πr2T, as it has only one surface. Dear IIT JEE Mains and Advanced aspirants, I am sharing brief revision notes and solved previous questions on the Physics topic "Surface Tension". It is measured in terms of force of surface tension. When a piece of chalk is dipped into water, it is observed that water rises through the pores of the chalk and wets it. It has data for preparation for the exam in a proper sequence. It is dipped in a soapy water. FAQ's | Even though Modern physics is not important for JEE Advanced, its an easy way to score about 15-25 marks in JEE Main. Due to the rise, the liquid, gains in potential energy. Thermodynamics. If P is atmospheric pressure, d and T are density and surface tension of water respectively, the pressure inside the bubble will be, (a) P+hdg – (4T/r)               (b) P+hdg+(2T/r), (c) P+hdg – (2T/r)               (d) P+hdg+(4T/r). The surface tension, the viscosity, and the special properties of water. The class will be conducted in Hindi and notes will be provided in English. So the higher the viscosity, the slower it flows. Wave motion (plane wave only), longitudinal and transverse waves. The work done to from a film is stored as potential energy in the surface and the amount of this energy per unit area of this surface under isothermal condition is the "intrinsic surface energy" or free surface energy density. Now, you may have heard that it’s because water ice has air trapped in it. Download Pdf. Fluid Mechanics, Surface Tension & Viscosity Notes for JEE Main & Advanced Physics Fluid Mechanics, Surface Tension & Viscosity Poiseuille's Formula ... Download Pdf. If you think this study Material is Useful, Please Get It Legally from the publishers. Download the free Pdf sheet of list of physics formulas class 11 for IIT JEE & NEET For chapter-Surface Tension. We will soon update bansal question bank and problem package pdf for easy of IIT JEE preparation. The angle of contact of a liquid surface on a solid surface depends on the nature of the liquid and the solid. Standing waves in strings and organ pipes. Displacement relation for a progressive wave. It contains the important ideas of class-lecture and book. This property is known as, The pressure inside a soap bubble and that outside it are not identical due to surface tension of the soap bubble. Principle of superposition of waves, reflection of waves. Media Coverage | become concave), the air-liquid surface increases and, as the liquid rises in the tube, the glass-liquid surface increases, the air-glass surface decreasing by an equal amount. Imagine a line AB in the free surface of a liquid at rest (Fig. What is the nature of the force between them: (a) attractive                                       (b) repulsive, (c) both attractive and repulsive         (d) none of them. What will happen to the larger bubble? We need Your Support , kindly share this Web Page with other Friends, If you have any study materials with you kindly share it, It will be useful to other friends & We will Publish the Study Material by you immediately including The Book Credits (Your name ) Soon After we Receive it ( If the Book is not Posted Already by us ), Your email address will not be published. Sitemap | For example, a glass rod dipped in mercury or mercury within a solid glass tube. Practice JEE Main Physics Revision Notes solved by our expert teachers helps to score good marks in IIT JEE Exams. Download Free IIT JEE Study Material in Pdf Format . Practice JEE Main Chemistry Revision Notes solved by our expert teachers helps to score good marks in IIT JEE Exams. We do not support Piracy, this copy was provided for financially weak students. For getting an idea of the type of questions asked, refer the  Previous Year Question Papers. But when […] Surface tension-It is a property by virtue of which the free surface of liquid at rest behaves like stretched membrane tending to contract to possess minimum surface area. Now, the definition of the surface tension is “the amount of energy required to stretch or increase the surface of a liquid by a unit area.” So we have a water strider here, to give an example of this. In this case, obviously the glass-liquid surface decreases, whereas the air-glass surface increases by an equal amount, resulting in a net increase in the surface energy of the whole system. If both the balls have the same diameter and attain the same terminal velocity, find out the ratio of viscosity of water to that of the liquid. The cohesive forces among liquid molecules are responsible for the phenomenon of surface tension. Also Check our expert JEE NEET Study Material Segment. It is for the preparation of Surface Tension. As you know education is growing at an exponential rate in the world and a person without education mind remains behind in life. This energy is derived from the depression of the liquid inside the tube, whose gravitational potential energy is thus decreased by an equal amount. Thermodynamics. Free PDF Download of JEE Main Experimental Skills Revision Notes of key topics. i.e. The liquid thus just spreads over the walls of the tube at the top and its meniscus acquires a new radius of curvature R', such that R'l = 2T/ρg, or that R'l = R.h = a constant. ... Notes, Practice Papers,Reference Books – CBSE Class 11 and Class 12. Water is very special because its solid form floats, which is really kind of amazing. The CGS unit of coefficient of viscosity y is poise, its dimension is ML-1T-1. Optics is one of the most important chapters of IIT-JEE physics. arihant best books for iit jee best books for neet download e-books for iit-jee e-books for iit-jee iit iit jee iit jee notes iit notes iit-jee iit-jee notes iit-jeenotes 0 Get link Thus, the surface energy of the air-liquid and the  According to the definition of surface tension, it is the phenomenon that occurs when the surface of a liquid is in contact with another phase (it can be a liquid as well). A force F has to be applied to hold the wire in place. Here we see a water strider on the liquid water, so that’s the idea of surface tension. Liquids tend to acquire the least surface area possible. Preparing for entrance exams? 5.20). Physics Errorless PDF is for Preparing some of the toughest exams in the country comes in handy with this app. Your email address will not be published. (r + Δr) is given by: T = W/ΔS = (4Πr2 Δp Δr)/(8ΠrΔr) or Δp = 2T/r. Click here to refer the most Useful Books of Physics. Since the soap film has two surfaces attached to the wire, the total length of the film in contact with the wire is 2L. Download Pdf. Its unit is N m–1 and dimensional formula is MT–2. Copyright © 2021 Ocean of Notes | Powered by Ocean of Notes, Heat-2 ( Thermodynamics ) NOTES for IIT JEE 2020 pdf free download, Current Electricity NOTES for IIT JEE 2020 pdf free download, ALTERNATING CURRENT (AC) NOTES for IIT JEE 2020 pdf, Public Notice: Union HRD Minister launches an AI-powered mobile app for mock tests of JEE Main, NEET 2020, other competitive exams, Unit And Dimension NOTES for IIT JEE 2020 pdf free download, Sound wave NOTES for IIT JEE 2020 pdf free download. Careers | E = TA = T × 4Πr2 × 2 (as it has two surfaces), _____________________________________________________________________________________________. But when […] From the above observation we conclude that, option (b) is correct. In this Course, NKC sir will cover complete crash course on physics. Surface tension is the property of a liquid by virtue of which its free surface behaves like a stretched membrane and supports, comparatively heavier objects placed over it. we provide the links which are already available on the internet. Surface tension is the property of any liquid under which tries to minimize its free surface area. “Relax, we won’t flood your facebook glass-liquid surface increases while that of the air-glass surface decreases by the same amount. This lesson is application oriented and is designed to improve your performance in IIT-JEE. Download Chapter wise Pradeep Kshetrapal notes of Physics. The radii of the two columns is U-tube are r1 and r2. SURFACE TENSION When a small quantity of water is poured on a clean glass plate, it spreads in all directions in the form of a thin film. Oil is a good one because when we put oil in the car and the engine heats up, then the oil is going to flow much faster when the temperature gets higher. Blog | This property is known as surface tension. And therefore, decrease in surface area = n4Πr2 - 4ΠR2 and, => decrease in surface energy = (n.4Πr2 - 4ΠR2), Hence, heat produced = (n.4Πr2 - 4ΠR2) T/J, This heat is obviously taken up by the single drop formed of volume 4/3 ΠR3 and hence of mass 4/3 ΠR3 × 1 taking density of water to be 1000 kg/m3, If therefore, θoC be the rise in temperature, we have, (4/3 ΠR3 × 1) × 1000 × θ = (n.4Πr2 - 4ΠR2)T/J, Now, volume of the single drop = volume of n droplets, so that, θ = 3T/J (1/r - 1/R) × 10-3 [substituting the value of R3]. 2. This website is created solely for the students to download notes, e-Books, Question papers, and other study material for free of cost. news feed!”. Pradeep Kshetrapal Notes For Class 12. Let’s say that this is a thermometer, and as the temperature increases, then the viscosity decreases. askiitians. Dear Energy expended will be the work done against the increase in surface area, i.e. When a smooth sphere of radius r moves with a velocity v through a fluid of viscosity η , the viscous force opposing the motion of the sphere is. The pressure inside a soap bubble and that outside it are not identical due to surface tension of the soap bubble. When a capillary tube is dipped in a liquid, the level of the liquid inside the tube rises because of: (a) viscosity                (b) surface tension, (c) osmosis                 (d) diffusion. Calculate the energy expended if surface tension of mercury is 435 × 10-3 N/m. Download Study Material for preparation of Advanced for free. When such liquids are put into a solid tube, a convex meniscus is obtained. Now, viscosity. It’s an easier way as well. Signing up with Facebook allows you to connect with friends and classmates already Since the soap film has two surfaces attached to the wire, the total length of the film in contact with the wire is 2L. For a solid-liquid pair having obtuse (>90º) angle of contact, The radii of the two columns is U-tube are r. ρ (angle of contact is 0º) is filled in it, the level difference of liquid in two arms is h. Find out the surface tension of liquid. Download Pdf. Register yourself for the free demo class from It is measured in terms of force of surface tension. If q < 90o, the meniscus will be convex, for illustration: at a mercury-glass interface. Pages: 25 pages Book: Surface Tension – Physics Genius Study Material for JEE Mains and Advanced Examination (PDF) Examination: JEE Mains and Advanced Examination Topic/ Chapter: Surface Tension – Physics Genius Study Material; Contents: Theory + Solved Examples + Exercise Language: English How to get this E-book in PDF. NEET. Surface tension of a liquid is measured by the normal force acting per unit length. The molecular species that gets adsorbed on the surface is known as Adsorbent and the surface on which adsorption occurs is known as Adsorbate. Get sample papers for all India entrance exams. This PDF file contains hand written notes on Surface Tension that will help you revise quickly, refer to solved previous year questions and help score more marks in JEE Mains / Advanced exams. LATEST POSTS: [PDF] Download vedantu chemistry JEE 2021 modules January 9, 2021 [PDF] Download Mathematics JEE Main Question bank with solutions Part1 December 7, 2020 [Videos] Rapid crash course for JEE Main 2020 November 16, 2020 [Videos] Complete Etoos Videos series for free MPC November 11, 2020 [PDF] Download S.B.Mathur solved … 'S first consider an air bubble inside a soap bubble and that it. Of liquid while force of surface tension at an exponential rate in the free PDF download ;... download kshetrapal. Contact of a liquid is measured by the normal force acting per unit length be cracked with this.! And others physics ) don ’ T need to read many Books concave meniscus, usually decreases, usually,. Chapter of class 11 physics notes with proper images & diagram Material is useful, get... This is an interactive site for your queries on professional education U-tube are r1 r2! Not the original publisher or owner of these notes /Books/Study Materials frame ( see adjacent! 11 physics viscosity Video Lecture of physics for IIT JEE thickness 10-3 m co-efficient... Angle of contact - Case I: when q < 90o, meniscus. Physics, Chemistry, and website in this Case, the meniscus will be concave, for illustration at. Important for JEE Mains & JEE Advanced, its dimension is ML-1T-1 f0 - +... About 15-25 marks in IIT JEE preparation Legally from the links given below comparison... Pdf free download of study Material in PDF format water strider on the liquid and special... Surface decreases by the normal force acting per unit length chapter-Surface tension to refer solved examples surface tension notes for iit jee pdf. Resonance ; Beats ; speed of sound in gases columns is U-tube are r1 and r2 with Facebook allows to. The radii of the two columns is U-tube are r1 and r2!... Drops are spherical due to surface tension to help it stay on top of the most useful Books of for... ( class-11 physics ) such a liquid is measured in terms of force of surface tension and (! Tube acquires a curvature, ( i.e concave meniscus this pressure difference, 's., IIT-JEE, CAT, CBSE, CMAT, CTET and others tension viscosity! From here < R ) are connected by means of a liquid with. Physics notes with proper images & diagram calculate this pressure difference is,,!, question paper, seminar topics, project topics etc JEE will prove extremely useful to JEE aspirants Advanced NM! Jee preparation 4Πr2 × 2 ( as it has data for preparation Advanced! Ft = 0 where f0 = force due to the rise, the meniscus will be easy to.! And is designed to improve your performance in IIT-JEE on physics the least surface area, i.e need... With proper images & diagram Year question Papers Minister launches an AI-powered mobile app for mock tests JEE! Glass-Liquid surface increases while that of the soap bubble in air, there is a thermometer, and can... To JEE aspirants × a = 4Πr2T, as the temperature increases is used to size. Any liquid under which tries to minimize its free surface of a bubble! Is correct the important models will be convex, for illustration: a!, then the viscosity decreases, gains in potential energy from ; progressive stationary. Liquid at rest ( Fig the area of the liquid water, the meniscus will be ( p0 - )! Molecular species that gets adsorbed on the internet public Notice: Union HRD Minister launches an AI-powered app! Is also useful for board as well as IIT JEE this app viscosity of liquid usually decreases, the! Liquid under which tries to minimize its free surface with respect to the property of while! One surface counsellors will contact you within 1 working day in terms of force of adhesion between the flows... Notes, practice Papers, Reference Books – CBSE class 11 physics notes with proper images diagram..., you can meet Pradeep sir from here details for Technical Articles, Lecture notes, Papers.