All Courses
Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity Get the App Login Join for Free
Sign in Open App
Class 11 Exam  >  Class 11 Questions  >  An iron ball of radius 0.3m falling through a... Start Learning for Free
SaveJoin the Discussion on the App
An iron ball of radius 0.3m falling through a column of oil density 0.94g/cm^3 attains a terminal velocity of 0.5m/s. what is the coefficient of viscosity of the oil? density of iron is 7.8g/cm^3
Clear all your Class 11 doubts with EduRev
Most Upvoted Answer
An iron ball of radius 0.3m falling through a column of oil density 0....
Calculation of Coefficient of Viscosity of Oil


Given Data


  • Radius of iron ball, r = 0.3m

  • Density of oil, ρ = 0.94g/cm³

  • Terminal velocity of ball, v = 0.5m/s

  • Density of iron, ρiron = 7.8g/cm³



Formula

Terminal velocity of a sphere falling through a fluid is given by:

v = (2/9) (r2 g (ρiron - ρ) / η)

where η is the coefficient of viscosity of the oil


Calculation

Substituting the given values in the formula:

0.5 = (2/9) (0.32 x 9.8 x (7.8 - 0.94) / η)

η = (2/9) (0.32 x 9.8 x (7.8 - 0.94) / 0.5)

η = 0.12 Pa s


Answer

Therefore, the coefficient of viscosity of the oil is 0.12 Pa s.
Community Answer
An iron ball of radius 0.3m falling through a column of oil density 0....
The direct formula is..v=2r^2g(rho-sigma)/(9eta)....eta= coefficient of viscosity..v= terminal velocity
Attention Class 11 Students!
To make sure you are not studying endlessly, EduRev has designed Class 11 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 11.
Explore Courses for Class 11 exam

Similar Class 11 Doubts

Attempt All sub parts from each question.Newtonian and non-Newtonian fluid: Viscosity is the physical property that characterizes the flow resistance of simple fluids. Newton’s law of viscosity defines the relationship between the shear stress and shear rate of a fluid subjected to a mechanical stress. The ratio of shear stress to shear rate is a constant, for a given temperature and pressure, and is defined as the viscosity or coefficient of viscosity. Newtonian fluids obey Newton’s law of viscosity. The viscosity is independent of the shear rate. Example: air, water, alcohol etc. Non-Newtonian fluids do not follow Newton’s law thus, their viscosity (ratio of shear stress to shear rat e) is not constant and is dependent on the shear rate. Example: honey, ketchup etc. Non-Newtonian fluids can be categorized into four types based on the way a fluid’s viscosity changes in response to variations in shear rate.• Pseudoplastic: Materials whose viscosity decreases as the shear rate increases. This type of flow behavior is sometimes called shear thinning. Example: Cake batter, agar-agar and fruit juice concentrates, nail polish etc.• Dilatant: M aterials whose viscosity increases as the shear rate increases. This type of behavior is sometimes called shear-thickening. Example: Suspension of corn starch in water and candy compounds etc..• Thixotropic: M aterials whose viscosity decreases when sheared at a constant rate over time. Example: Yogurt, gelatin gel, honey etc.• Rheopectic: M aterials whose viscosity increases when sheared at a constant rate over time. Example: Printer ink, gypsum paste etc.Q. Newton’s law of viscosity states

Top Courses for Class 11View all

Top Courses for Class 11

An iron ball of radius 0.3m falling through a column of oil density 0.94g/cm^3 attains a terminal velocity of 0.5m/s. what is the coefficient of viscosity of the oil? density of iron is 7.8g/cm^3
Question Description
An iron ball of radius 0.3m falling through a column of oil density 0.94g/cm^3 attains a terminal velocity of 0.5m/s. what is the coefficient of viscosity of the oil? density of iron is 7.8g/cm^3 for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about An iron ball of radius 0.3m falling through a column of oil density 0.94g/cm^3 attains a terminal velocity of 0.5m/s. what is the coefficient of viscosity of the oil? density of iron is 7.8g/cm^3 covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An iron ball of radius 0.3m falling through a column of oil density 0.94g/cm^3 attains a terminal velocity of 0.5m/s. what is the coefficient of viscosity of the oil? density of iron is 7.8g/cm^3.
Solutions for An iron ball of radius 0.3m falling through a column of oil density 0.94g/cm^3 attains a terminal velocity of 0.5m/s. what is the coefficient of viscosity of the oil? density of iron is 7.8g/cm^3 in English & in Hindi are available as part of our courses for Class 11. Download more important topics, notes, lectures and mock test series for Class 11 Exam by signing up for free.
Here you can find the meaning of An iron ball of radius 0.3m falling through a column of oil density 0.94g/cm^3 attains a terminal velocity of 0.5m/s. what is the coefficient of viscosity of the oil? density of iron is 7.8g/cm^3 defined & explained in the simplest way possible. Besides giving the explanation of An iron ball of radius 0.3m falling through a column of oil density 0.94g/cm^3 attains a terminal velocity of 0.5m/s. what is the coefficient of viscosity of the oil? density of iron is 7.8g/cm^3, a detailed solution for An iron ball of radius 0.3m falling through a column of oil density 0.94g/cm^3 attains a terminal velocity of 0.5m/s. what is the coefficient of viscosity of the oil? density of iron is 7.8g/cm^3 has been provided alongside types of An iron ball of radius 0.3m falling through a column of oil density 0.94g/cm^3 attains a terminal velocity of 0.5m/s. what is the coefficient of viscosity of the oil? density of iron is 7.8g/cm^3 theory, EduRev gives you an ample number of questions to practice An iron ball of radius 0.3m falling through a column of oil density 0.94g/cm^3 attains a terminal velocity of 0.5m/s. what is the coefficient of viscosity of the oil? density of iron is 7.8g/cm^3 tests, examples and also practice Class 11 tests.
Explore Courses for Class 11 exam

Top Courses for Class 11

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Get App
© EduRev
Education Revolution
Follow Us
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup